Math, asked by tarunthapa9550, 1 year ago

Find the value of tan square 10 degree minus cot square 80 degree

Answers

Answered by sarang53

2

tan²10°-cot²80°

you known, tan teta =cot (90-teta)

=cot²(90-10)-cot²80°

=cot²80°-cot²80°

=0

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