Cho hàm số . Tìm tất cả các giá trị của tham số thưc  để đồ thị hàm số có ba điểm cực trị tạo thành 1 tam giác nhận gốc tọa độ làm trực tâm.  

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Một số câu hỏi khác có thể bạn quan tâm.

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

  Tom is English. So is Linda.
  
  

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

  The manufacture of automobile was extreme expensive until assembly-line techniques

  made them cheaper to produce.

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

  Nothing can prevent him from loving her, can’t it?

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

  He didn’t prepare his lesson so he couldn’t answer the teacher’s questions.
  
  

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

  Can you give me the newspaper on the table, Nam?
  
  

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

  Absolutely nothing that floats, neither a corked bottle nor a 50,000-ton ships can escape the effects of water currents.

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

  The president was made resign by the rebels.

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

  It is believed that there is another world for the death people.

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

  It’s him who has won the gold medal for men’s long jump.

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

  Tom is good at English. He is good at French, too.