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Is square root 1 minus cosine squared theta = −sin Θ true? If so, in which quadrants does angle Θ terminate?

Eric Morgan

in Mathematics

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Victoria Fowler on August 9, 2018

Yes that is true because:(1 - cos^2 x) = sin^2 x Sqr.(1 - cos^2 x) = sin x and (-sinx) True, since sin x is negative. Also, x terminates in quadrant 3 and 4. I hope this is useful


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