Discuss Forum
1. a + 1/a = 2 হলে a2 + 1/a2 = কত?
- A. 2
- B. 2
- C. 2
- D. 2
Answer: Option A
Explanation:
a+1/a=2
a^2+1/a^2
=(a+1/a)^2-2a.1/a
=2^2-2
=2
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1. a + 1/a = 2 হলে a2 + 1/a2 = কত?
Answer: Option A
Explanation:
a+1/a=2
a^2+1/a^2
=(a+1/a)^2-2a.1/a
=2^2-2
=2
Post your comments here: