15. Verify the identity. (20 points) cos (x + pi/2) = -sin x PLEASE!!!!!

Mad Jackal asked Nov 16, 2022

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38 votes

15. Verify the identity. (20 points)
cos (x + pi/2) = -sin x
PLEASE!!!!!

Mad Jackal asked Nov 16, 2022

3.3k points

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16 votes

-sin (x) is the identity

Shabar answered Nov 20, 2022

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