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finlep [7]
3 years ago
15

Trigonometry Identities help please

Mathematics
1 answer:
sesenic [268]3 years ago
6 0

theta is in the fourth quadrant where the cosine is positive.


the third side in the triangle = sqrt (4 - 2) = sqrt2


So sin theta = -sqrt2/2 = Second choice (negative because sine is negative in 4th quadrant)


tan theta = - sqrt2 / sqrt2 = -1

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