Math, asked by merlinemelina, 11 months ago

please answer my question friends

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Answers

Answered by sandy1816

1

Step-by-step explanation:

replace θ by A

RHS

cosA/1-sinA

=cosA(1+sinA)/1-sin²A

=cosA(1+sinA)/cos²A

=(1+sinA)/cosA

=secA+tanA

LHS

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