Cho số phức thỏa mãn . Tìm tập hợp các điểm biểu diễn số phức trên mặt phẳng tọa độ.

Chia sẻ

Một số câu hỏi khác cùng bài thi.

• Cho số phức  biết . Phần thực của số phức  là         

• Tính mô đun của số phức $z$ thỏa $z-2i\overline{z}=1-5i$ .
  

• cho số phức z thỏa mãn . Modun của số phức là ?         

• Cho số phức . Tính môđun của số phức .

• Tính môđun của số phức $z$ , biết $\overline{z}=\left(4-3i\right)\left(1+i\right)$ .
  

• Cho số phức z , biết . Khi đó số phức z có phần ảo bằng bao nhiêu?                 

• Xét số phức thỏa mãn Khẳng định nào dưới đây đúng ?

• Cho hai số thực  thỏa mãn phương trình . Khi đó, giá trị của  và  là:         

•  Cho hai số phức  và . Tính môđun cùa ?  

• Cho số phức thỏa mãn điều kiện . Tính môđun của số phức .

• Cho hai số phức và thỏa mãn . Xét số phức . Tìm  .

• Tính môđun của số phức z thỏa mãn .                                   

• Cho số phức . Mô đun của số phức  bằng

• Kí hiệu  là hai nghiệm phức của phương trình  . Tính .   

• Cho số phức  khác  . Tìm phần ảo của số phức .

• Cho số phức . Phần thực, phần ảo của lần lượt là

• Cho 3 số phức  ; và . Tìm môđun số phức .          

• Cho số phức z=2+i. Tính |z|.           

• [ Mức độ 1] Môđun của số phức $z=1-3i$ bằng
  

• Cho số phức  Khi đó phần thực a và phần ảo b của số phức  là:

• Cho số phức . Tìm phần thực và phần ảo của số phức

• Cho số phức  thỏa mãn  và . Tính .  

• Phần thực và phần ảo của số phức: $z=1-3i$
  

• Phần thực, phần ảo của số phức thỏa mãn lần lượt là :

• Cho số phức $z$ thỏa mãn: $(2-3i)z+(4+i)\overline{z}=-{(1+3i)}^2$ . Xác định phần thực và phần ảo của $z.$
  
• Cho số phức $z$ thỏa mãn $\left(z+2-3i\right)\left(1-i\right)={\left(1+i\right)}^{2015}$ . Tìm phần ảo $b$ của số phức $w=z+2-3i$
  
• Cho số phức $z$ thỏa mãn $3\left(\overline{z}-i\right)-\left(2+3i\right)z=7-16i$ . Môđun của số phức $z$ bằng.
  
• Cho số phức $z$ thỏa mãn $\left(2-i\right)z-\left(2+i\right)\overline{z}=2i$ . Giá trị nhỏ nhất của $\left|z\right|$ bằng
  

• Trong các sô phức thỏa điều kiện mô đun nhỏ nhất của số phức bằng:

• Tìm phần thực và phần ảo của số phức

• Cho hai số thực  thỏa mãn phương trình . Khi đó, giá trị của  và  là:         

• Tính môđun của số phức $z$ , biết $z$ thỏa mãn $iz=3+4i.$
  

• Cho số phức thỏa mãn . Tìm tập hợp các điểm biểu diễn số phức trên mặt phẳng tọa độ.

• Cho số phức  thỏa mãn điều kiện . Tìm phần ảo của số phức           

• Cho số phức z thỏa mãn điều kiện Mô đun của số phức là  ?        

• Tìm phần ảo $b$ của số phức $z^2$ , biết $\left(1+i\right)z=\frac{1}{z}.$
  

• Mô đun của số phức z thỏa mãn phương trình là ?          

• Cho số phức thỏa mãn: . Môđun của số phức  là:

• Trong các số phức  thỏa điều kiện , tìm phần thực của số phức  có môđun lớn nhất?

• Cho số phức z thỏa mãn . Tính modun của z :         

Một số câu hỏi khác có thể bạn quan tâm.

•   Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35: 

  Nowadays people are more aware that wildlife all over the world is in (31)___________. Many species of animals are threatened, and could easily become (32)___________ if we do not make an effort to protect them. There are many reasons for this. In some cases animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught (33)___________, and sold as pets. For many animals and birds, the problem is that their habitats-the place where they live-is disappearing. More land is used for farm, for houses and industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them grow better crops, but these chemicals pollute the environment and (34)___________ wildlife. The most successful animals on Earth, human beings, will soon be the only ones (35)___________ unless we can solve this problem.

  Question 33:

• Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:

   Nowadays people are more aware that wildlife all over the world is in (31)___________. Many species of animals are threatened, and could easily become (32)___________ if we do not make an effort to protect them. There are many reasons for this. In some cases animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught (33)___________, and sold as pets. For many animals and birds, the problem is that their habitats-the place where they live-is disappearing. More land is used for farm, for houses and industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them grow better crops, but these chemicals pollute the environment and (34)___________ wildlife. The most successful animals on Earth, human beings, will soon be the only ones (35)___________ unless we can solve this problem.  

  Question 34:

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:

                                                                                THE OLD GATE

  In the Middle Ages the vast majority of European cities had walls around them. They (31) _______ to defend the city, but they also kept out undesirable people, like those with contagious diseases. Most of London’s gates had been (32) _______ by the end of the eighteenth century. However, by a stroke of luck, the last of them was preserved. This gate is, in actual fact, not called a gate at all; its name is Temple Bar, and it marked the (33) _______ between the old City of London and Westminster. However, as the (34) _______ of traffic through London increased, Temple Bar became an obstacle to its free flow. In 1878 it was decided to take it down, so its stone were numbered, dismantled and put in storage. A couple of years later a wealthy businessman bought the stones and re-erected them at his house in Hertfordshire. In the 1970s the Temple Bar Trust was (35) _______ with the intention of returning the gate to the City of London. Much of the money for this project was donations from the Temple Bar Trust. The stonework needed a lot of restoration, which was carried out by the Cathedral Works Organization. Today, Temple Bar stands next to St Paul’s Cathedral.

  Question 31:  

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:

                                                                                THE OLD GATE

  In the Middle Ages the vast majority of European cities had walls around them. They (31) _______ to defend the city, but they also kept out undesirable people, like those with contagious diseases. Most of London’s gates had been (32) _______ by the end of the eighteenth century. However, by a stroke of luck, the last of them was preserved. This gate is, in actual fact, not called a gate at all; its name is Temple Bar, and it marked the (33) _______ between the old City of London and Westminster. However, as the (34) _______ of traffic through London increased, Temple Bar became an obstacle to its free flow. In 1878 it was decided to take it down, so its stone were numbered, dismantled and put in storage. A couple of years later a wealthy businessman bought the stones and re-erected them at his house in Hertfordshire. In the 1970s the Temple Bar Trust was (35) _______ with the intention of returning the gate to the City of London. Much of the money for this project was donations from the Temple Bar Trust. The stonework needed a lot of restoration, which was carried out by the Cathedral Works Organization. Today, Temple Bar stands next to St Paul’s Cathedral.

  Question 32:  

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:

                                                                                THE OLD GATE

  In the Middle Ages the vast majority of European cities had walls around them. They (31) _______ to defend the city, but they also kept out undesirable people, like those with contagious diseases. Most of London’s gates had been (32) _______ by the end of the eighteenth century. However, by a stroke of luck, the last of them was preserved. This gate is, in actual fact, not called a gate at all; its name is Temple Bar, and it marked the (33) _______ between the old City of London and Westminster. However, as the (34) _______ of traffic through London increased, Temple Bar became an obstacle to its free flow. In 1878 it was decided to take it down, so its stone were numbered, dismantled and put in storage. A couple of years later a wealthy businessman bought the stones and re-erected them at his house in Hertfordshire. In the 1970s the Temple Bar Trust was (35) _______ with the intention of returning the gate to the City of London. Much of the money for this project was donations from the Temple Bar Trust. The stonework needed a lot of restoration, which was carried out by the Cathedral Works Organization. Today, Temple Bar stands next to St Paul’s Cathedral.

  Question 33:  

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:

                                                                                THE OLD GATE

  In the Middle Ages the vast majority of European cities had walls around them. They (31) _______ to defend the city, but they also kept out undesirable people, like those with contagious diseases. Most of London’s gates had been (32) _______ by the end of the eighteenth century. However, by a stroke of luck, the last of them was preserved. This gate is, in actual fact, not called a gate at all; its name is Temple Bar, and it marked the (33) _______ between the old City of London and Westminster. However, as the (34) _______ of traffic through London increased, Temple Bar became an obstacle to its free flow. In 1878 it was decided to take it down, so its stone were numbered, dismantled and put in storage. A couple of years later a wealthy businessman bought the stones and re-erected them at his house in Hertfordshire. In the 1970s the Temple Bar Trust was (35) _______ with the intention of returning the gate to the City of London. Much of the money for this project was donations from the Temple Bar Trust. The stonework needed a lot of restoration, which was carried out by the Cathedral Works Organization. Today, Temple Bar stands next to St Paul’s Cathedral.

  Question 34:  

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:                                                          

                                                                         SCHOOL LUNCH

  Research has shown that over half the children in Britain who take their own lunches to school do not eat (31) _______ in the middle of the day. In Britain, schools have to provide meals at lunchtime. Children can choose to bring their own food or have lunch at the school canteen. One shocking (32) _______ of this research is that school meals are much healthier than lunches prepared by parents. There are strict standards for the preparation of school meals, which have to include one portion of fruit and one of vegetables, as well as meat, a dairy item and starchy food like bread or pasta. Lunchboxes (33) _______ by researchers contained sweet drinks, crisps and chocolate bars. Children (34) _______ twice as much sugar as they should at lunchtime. The reseat will provide a better understanding of why the percentage of overweight students in Britain has increased in the last decade. Unfortunately, the government cannot instruct parents, but it can remind them of the (35) _______ value of milk, fruit and vegetables. Children can easily develop bad eating habits at this age, and parents are the only ones who can prevent it.

  Question 35:

               

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:                                                          

                                                                         SCHOOL LUNCH

  Research has shown that over half the children in Britain who take their own lunches to school do not eat (31) _______ in the middle of the day. In Britain, schools have to provide meals at lunchtime. Children can choose to bring their own food or have lunch at the school canteen. One shocking (32) _______ of this research is that school meals are much healthier than lunches prepared by parents. There are strict standards for the preparation of school meals, which have to include one portion of fruit and one of vegetables, as well as meat, a dairy item and starchy food like bread or pasta. Lunchboxes (33) _______ by researchers contained sweet drinks, crisps and chocolate bars. Children (34) _______ twice as much sugar as they should at lunchtime. The reseat will provide a better understanding of why the percentage of overweight students in Britain has increased in the last decade. Unfortunately, the government cannot instruct parents, but it can remind them of the (35) _______ value of milk, fruit and vegetables. Children can easily develop bad eating habits at this age, and parents are the only ones who can prevent it.

  Question 34:

   

• Choose the word or phrase (A, B, C or D) that best fits the blank space in the following passage:

                                                                                       PAPER

  'Just imagine a day without paper', reads one advertisement for a Finnish paper company. It adds, ‘You almost certainly see our products every day.’. And they're right. But in most industrial countries, people are so (31) _______ to paper - whether it’s for holding their groceries, for drying their hands or for providing them with the daily news - that its (32) _______ in their daily lives passes largely unnoticed. At one (33) _______ paper was in short supply and was used mainly for important documents, but more recently, growing economies and new technologies have (34) _______ a dramatic increase in the amount of paper used. Today, there are more than 450 different grades of paper, all designed for a different purpose. Decades ago, some people predicted a ‘paperless office’. Instead, the widespread use of new technologies has gone hand-in-hand with an increased use of paper. Research into the relationship between paper use and the use of computers has shown that the general (35) _______ is likely to be one of growth and interdependence. However, the costs involved in paper production, in terms of the world's land, water and air resources, are high. This raises some important questions. How much paper do we really need and how much is wasted?  

  Question 35:

• Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks:

  Can we see (33)______ the earth is a globe? Yes, we can, when we watch a ship that sails out to sea. If we watch closely, we see that the ship begins (34)______. The bottom of the ship disappears first, and then the ship seems to sink lower and lower, (35)______ we can only see the top of the ship, and then we see nothing at all. What is hiding the ship from us? It is the earth. Stick a pin most of the way into an orange, and (36)______ turn the orange away from you. You will see the pin disappear, (37)______ a ship does on the earth.  

  Question 33: