Math, asked by ayush173, 1 year ago

evaluate:- cos80/sin10 +cos59 ×cosec31

Answers

Answered by Mihir7

4

We have
cos(90-10)/sin10 + cos(90-31) × 1/sin31
= sin10/sin10 + sin31/sin31
= 1 + 1
= 2

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