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OpenStudy (ilovecomputers1):
If sin Θ = 3 over 7 and tan Θ < 0, what is the value of cos Θ?
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OpenStudy (freckles):
Draw a right triangle in the second quadrant or you can use sin^2 (t) +cos^2 (t) =1 and solve for cos(t)
OpenStudy (dumbcow):
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