x+(1/x) = √3 হলে, x³+(1/x³) এর মান কত?
A 0
B 6
C 4
D 2
Correct Answer: Option A
x+(1/x) = √3
x3+ 1/x3 = (x+ 1/x)3 - 3.x.1/x (x+ 1/x)
= (√3)^3 - 3.√3 = 3√3 - 3√3 = 0
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