[ Mức 2] Cho hàm số $f\left(x\right)=x^4-10x^2+2$ . Gọi $M$ , $m$ lần lượt là giá trị lớn nhất, nhỏ nhất của hàm số
trên đoạn $\left[-1;2\right]$ . Tính $M+m$

Cho điểm trong đó không có điểm nào thẳng hàng. Hỏi có bao nhiêu tam giác mà ba đỉnh của nó được chọn từ điểm trên?  

Read the following passage and mark the letter A,B,C or D on your answer sheet to indicate the correct answer to each of the questions:

                                                                  COLORS AND EMOTIONS

Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related? Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need. The colors that you wear affect you much more than they affect the people around you. Of course they also affect anyone who comes in contact with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better. Color, sound and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.

Question: The phrase “saturated with” in paragraph 3 is closest in meaning to________.  

Một đa giác đều có số đường chéo gấp đôi số cạnh. Hỏi đa giác đó có bao nhiêu cạnh?  

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

Question: The word "adorned" in paragraph 1 is closest in meaning to____________.         

Một túi có viên bi gồm viên bi màu trắng được đánh số từ đến ; viên bi màu đỏ được đánh số từ đến ; viên bi màu xanh được đánh số từ đến và viên màu vàng được đánh số từ đến . Có bao nhiêu cách chọn viên bi từng đôi khác số?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

Question: All of the following are given as characteristics of collectible objects EXCEPT ___________ .         

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

Question: What is the main subject of the passage?         

Có tất cả bao nhiêu cách chia người thành hai nhóm, một nhóm có người và một nhóm có người ?

Question 30: The word "standard" is closest in meaning to___________.           

Of all modern instruments, the violin is apparently one of the simplest. It consist in essence of a hollow, varnished wooden sound box, or resonator, and a long neck covered with a fingerboard, along which four strings are stretched at high tension. The beauty of design, shape, and decoration is no accident, the proportions of the instrument are determined entirely by acoustical considerations. Its simplicity of appearance is deceptive. About 70 parts are involved in the construction of a violin. Its tone and its outstanding range of expressiveness make it an ideal solo instrument. No less important, however, is its role as an orchestral and chamber instrument. In combination with the larger and deeper-sounding members of the same family, the violins form the nucleus of the modem symphony orchestra. The violin has been in existence since about 1550. Its importance as an instrument in its own right dates from the early 1600’s, when it first became standard in Italian opera orchestras. Its stature as an orchestral instrument was raised further when in 1626 Louis XIII of France established at his court the orchestra known as Les vinq-quatre violons du Roy (The King's 24 Violins), which was to become widely famous later in the century. In its early history, the violin had a dull and rather quiet tone resulting from the fact that the strings were thick and were attached to the body of the instrument very loosely. During the eighteenth and nineteenth century exciting technical changes were inspired by such composer-violinists as Vivaldi and Tartini. Their instrumental compositions demanded a fuller, clearer, and more brilliant tone that was produced by using thinner strings and a far higher string tension. Small changes had to be made to the violin's internal structure and to the fingerboard so that they could withstand the extra strain. Accordingly, a higher standard of performance was achieved, in terms of both facility and interpretation. Left-hand technique was considerably elaborated, and new fingering patterns on the fingerboard were developed for very high notes.