Question

please it's urgent please answer​

Answer 1

Answer:

Answer is in the attachment

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Answer 2

Answer:

$\cos(270° - 0) = - \sin(0)$

$\sin(180° - 0) = \sin(0)$

$= \cos(270° - 0) + \sin(180° - 0)$

$- \sin(0) + \sin(0)$

$= 0$

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