3 years ago

Help, im timed :((( will mark branliest

1 answer:

4 0

Answer: it is D)

Step-by-step explanation:

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Starting from the fundamental trigonometric equation, we have

$\cos^2(\alpha)+\sin^2(\alpha)=1 \iff \sin(\alpha)=\pm\sqrt{1-\cos^2(\alpha)}$

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