Math, asked by pragyasingh959, 1 year ago

evaluate.
cosec39.cos51+tan21.cot69-sec²21

Answers

Answered by daksh12

8

Apply the identity tan2+1=sec2. Rearrange it and you'll get -1

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Rittwotson: great job daksh keep it up

pragyasingh959: tysm for the answer

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