Math, asked by nagasri17763, 1 month ago

sin²20+sin²70/sec²15-cot²75..

answer it if u know...

Answers

Answered by sandy1816

1

Answer:

sin²20+sin²70/sec²15-cot²75

=sin²20+sin²(90-20)/sec²15-cot²(90-15)

=sin²20+cos²20/sec²15-tan²15

=1/1

=1

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