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Find cos θ if sin θ = -12/13 and tan θ > 0
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3 votes
Find cos θ if sin θ = -12/13 and tan θ > 0

User Darren Shewry
by
5.6k points

1 Answer

3 votes
sinФ=-12/13
cosФ=Base/hypotenus
(hy)^2-(perpendicular)^2=(base)^2=13^2-12^2=5
cosФ=-5/13


User Ngw
by
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