Question

how can cos 80/sin 10 be equal to 1

Answer 1

cos 80/sin (90-80)

= cos 80/cos 80 [since sin(90- theta)=cos theta]

=1

Answer 2

HeRe Is Your Ans ⤵

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➡Cos 80 / Sin 10

➡Cos 80 / Sin (90 - 80)

➡Cos 80 / Cos 80

➡1

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