First slide

Trignometry

Question

$\sin^{2} θ =$

Easy

A

$\frac{1 + \cos 2 θ}{2}$
B

$\frac{1 - \cos 2 θ}{2}$
C

$1 - \cos^{2} θ$
D

$\sin (2 θ)$

Solution

$\sin^{2} θ + \cos^{2} θ = 1 \sin^{2} θ = 1 - \cos^{2} θ$

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