Math, asked by kajolsp2004, 11 months ago

1/cos A+sin A + 1/cos A-sin A = 2 cos A/2 cos ^ 2 A-1

Answers

Answered by sruti18

2

This may help you.....

Attachments:

Answered by aryakittukrishnasai

0

Step-by-step explanation:

this can be done by taking π/4 as your theta

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