p - 1/p =8 হলে, p+ 1/p2 = ?

A 66

B 36

C 56

D 46

Solution

Correct Answer: Option A

দেওয়া আছে,
 p - 1/p = 8

⇒ (p - 1/p)2 = 82

⇒ p2 + 1/p2 - 2 = 64

⇒ p2 + 1/p2 = 64 + 2

⇒ p2 + 1/p2 = 66

অতএব, p2 + 1/p2 = 66

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