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Find cos(2θ) if tan(θ) = -3/4 and 90 < θ < 180

Find cos(2θ) if tan(θ) = -3/4 and 90 < θ < 180
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3 votes
Find cos(2θ) if tan(θ) = -3/4 and 90 < θ < 180

User ElFik
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8.9k points

1 Answer

9 votes

Answer:

9

Explanation:

User Ian Walter
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