First slide

Trignometry

Question

The value of $(1 - \cos^{2} θ) \cos e c^{2} θ$

Moderate

A

1
B

-1
C

0
D

2

Solution

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

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