Math, asked by vinutaraj111, 11 months ago

Sec (1-sinA)(secA+tanA)=1

Answers

Answered by sandy1816

2

Step-by-step explanation:

secA(1-sinA)(secA+tanA)

=(1-sinA)(1+sinA)/cosAcosA

=1-sin²A/cos²A

=cos²A/cos²A

=1

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