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1. f(x) = x3 + kx2 - 6x - 9; k এর মান কত হলে f(3) = 0 হবে?

  • A. 1
  • B. 1
  • C. 1
  • D. 1

Answer: Option D

Explanation:

দেওয়া আছে,

f( x) = x3 + kx2 - 6x - 9

f(3) = 0 হলে

33 + k (3)2 - 6. 3 - 9 = 0

27 + 9k - 27 = 0

k = 0


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