x+(1/x) = ­√3 হলে, x³+(1/x³) এর মান কত?

A 2

B 4

C 0

D 6

Solution

Correct Answer: Option C

 দেয়া আছে, 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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