A 1
B -1
C 2
D 0
Correct Answer: Option D
f(x) = x3 + kx2 - 6x - 9
f(3) = 33 +k.32 - (6.3) - 9
= 27 + 9k - 18 - 9
= 9k
এখন, f(3) = 0
বা, 9k = 0
∴ k = 0
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