(cosA+sin A)^(2) +(cosA-sinA)^(2) का मान...

`(cosA+sin A)^(2) +(cosA-sinA)^(2)` का मान किसके बराबर होगा ?

A

1

B

0

C

`-2`

D

2

Verified by Experts

The correct Answer is:

D

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