(a + 1/a) = 2 হলে নিচের কোনটি সঠিক?

A    a2 + 1/a2 = a3 + 1/a3

B    a2 + 1/a2 = a4 + 1/a4

C    1/a2 + 1/a4 = a2 + 1/a2

D    a2 - 1/a2 = a4 - 1/a4

Solution

Correct Answer: Option A

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