(sinA+cosA)^(2)+(cosA-sinA)^(2) का मान ह...

`(sinA+cosA)^(2)+(cosA-sinA)^(2)` का मान होगा-

A

0

B

1

C

2

D

3

Verified by Experts

The correct Answer is:

C

(sinA+cosA)^(2)+(cosA-sinA)^(2) का मान होगा-
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Prove that : (sinA+cosA)^(2)+(sinA-cosA)^(2)=2
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Prove that: (1+cosA+sinA)/(1+cosA-sinA)=(1+sinA)/(cosA)
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Prove that, (cosA)/(1+sinA)=(1+cosA-sinA)/(1+cosA+sinA)
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(cosA+sinA)/(cosA-sinA)-(cosA-sinA)/(cosA+sinA)=2tan2A.
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Prove that (CosA)/(1-tanA)-(Sin^(2)A)/(CosA-SinA)=SinA+CosA
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(cosA)/(1-tanA)-(sin^(2)A)/(cosA-sinA)=sinA+cosA
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(cosA+sinA)^(2)+(cosA-sinA)^(2)=2.
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सिद्ध कीजिए कि - (1+cosA)/(sinA)+(sinA)/(1+cosA)=(2)/(sinA)
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