Given that $ \sin 18^{\circ}=\frac{\sqrt{5}-1}{4} $ , find an exact expression for $ \cos 288^{\circ} $ .

Name: Given that $ \sin 18^{\circ}=\frac{\sqrt{5}-1}{4} $ , find an exact expression for $ \cos 288^{\circ} $ .
Brand: Quizplus
Rating: 4.9 (42 reviews)

Question

Given that  $ \sin 18^{\circ}=\frac{\sqrt{5}-1}{4} $ , find an exact expression for  $ \cos 288^{\circ} $ .

Quizplus · Accepted Answer

The Answer of Given that  $ \sin 18^{\circ}=\frac{\sqrt{5}-1}{4} $ , find an exact expression for  $ \cos 288^{\circ} $ .

Given That sin⁡18∘=5−14 \sin 18^{\circ}=\frac{\sqrt{5}-1}{4} sin18∘=45​−1​ , Find an Exact Expression For

Given That $\sin 18^{\circ}=\frac{\sqrt{5}-1}{4}$ , Find an Exact Expression For