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Grade: 12

                        

Evaluate : sin 18°/cos 72° find the value and plizzzskqdnwk

one month ago

Answers : (1)

Anand Kumar Pandey
askIITians Faculty
1583 Points
							Dear Student

sin 18°/cos 72°
To simplify this,
convert the sin function into cos function
We know that,
18° is written as 90° - 72°,
sin 18°= cos 72°.
= sin (90° - 18°) /cos 72°
Substitute the value, to simplify this equation
= cos 72° /cos 72°
= 1

Thanks

one month ago
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