Math, asked by firojkumarsahu99, 1 year ago

seca (1+ Sina)(seca-tana)=1

Answers

Answered by sandy1816

1

Step-by-step explanation:

secA(1+sinA)(secA-tanA)

=secA(1+sinA)(1-sinA/cosA)

=secA(1-sin²A/cosA)

=secA(cos²A/cosA)

=secA.cosA

=1

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