a -1/a = 6 হলে a2 + 1/a2 এর মান কত?
Solution
Correct Answer: Option B
∴ a2 + 1/a2
= (a - 1/a)2 + 2.a.1/a
= 62 + 2
= 36 + 2
= 38
= (a - 1/a)2 + 2.a.1/a
= 62 + 2
= 36 + 2
= 38
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