Cho điểm . Viết phương trình mặt cầu có tâm I và cắt mặt phẳng với thiết diện là hình tròn có đường kính bằng 2.

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Find a mistake in the four underlined parts of the sentence and correct it:

  I turned on the ceiling fan; although, it is still hot in here.

• Choose one sentence that has the same meaning as the root one:

  In spite of doing well in the contest, Jane didn’t win.
  
  

• Choose one sentence that has the same meaning as the root one:

  He talked very fast. I couldn’t understand him.
  
  

• Choose one sentence that has the same meaning as the root one:

  Despite his intelligence, he couldn’t solve the math puzzle.
  
  

• Choose one sentence that has the same meaning as the root one:

  Mary got wet because she didn’t have an umbrella.
  
  

• Choose one sentence that has the same meaning as the root one:

  Although I told the truth, no one believed me.
  
  

• Choose the word that has the underlined part pronounced differently from the rest:

  inact                  panda                       habitat                        danger

• Choose the word that has the underlined part pronounced differently from the rest:

  contaminate                  product                     loss                  conservation

• Choose the word that has the underlined part pronounced differently from the rest:

  hunting                  essential                    extinct                    identify

• Choose the word that has the underlined part pronounced differently from the rest:

  bamboo                     room                         choose                         wood