CBSE BOARD XII, asked by Anonymous, 3 months ago

in A +1 + 1+sin A /cos

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Answers

Answered by lakshits780

Answer:

Prove that sin A-cos A+1/sin A +cos A -1=1/Sec A-Tan A.

Answered by Anonymous

Answer:

LHS=

1−sinA

cosA

+

1+sinA

cosA

=

(1−sin

2 A)

cosA(1+sinA+1−sinA)

=

cos

2 A

2cosA

=

cosA

2 =2secA=RHS

Explanation:

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