Math, asked by saraamalik12300, 9 months ago

sin18
_____
cos 72
evaluate

Answers

Answered by Anonymous

6

Step-by-step explanation:

as we know sin(90-∅) = cos∅

So, sin18 = sin(90-72) = cos72

•°• sin18°/cos72° = cos72°/cos72° = 1

Answered by Anonymous

3

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$\huge\red{\sf Nmste}$

sin 18°/cos 72° = sin (90° - 18°) /cos 72° = cos 72° /cos 72° = 1

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