Math, asked by girijapriyasrinivasa, 4 months ago

prove that sin (90-a)÷1+sina +cosa÷1-cos(90-a)=2sec

Answers

Answered by sk515162662

0

Answer:

sin(90-a)=cos a

cos(90-a)=sin a

according to question

cos a+sin a+cos a-sin a=2cosa

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