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1. x2+1-3x=0

  • A. 0
  • B. 0
  • C. 0
  • D. 0

Answer: Option B

Explanation:

x^2 – √3x + 1 = 0⇒

 x - √3 + 1/x = 0 (দুই পক্ষকেই x দ্বারা ভভাগ করে পাই)

⇒ x + 1/x = √3

সুতরাং, x^2+1/x^2= (x+1/x)^2-2x.1/x= (√3)^2-2=3-2= 1 

Ans.: 1


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