If x + 1/x = 2, then x3 + 1/x3 is equal to-
Solution
Correct Answer: Option D
x³ + 1/x³ = (x + 1/x)³ - 3.x.1/x(x + 1/x)
= (2)³ - 3.2
= 8 - 6
= 2
= (2)³ - 3.2
= 8 - 6
= 2
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