Math, asked by Hrishikeshkota, 11 months ago

(tan a+cot a)^2=sec^2 a+cosec^2 a

Answers

Answered by Ishwarya12

1

Lhs:
tan^2a+ cot^a+2tana.cota
=tan^2a+ cot^2a +2tana.1/tana
=tan^2a+cot^2a+2
=tan^2a+1 +cot^2a+1
=sec^2a+cosec^2a
=rhs

Hrishikeshkota: thanks

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