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Is square root 1 minus sine squared theta = cos Θ true? If so, in which quadrants does angle Θ terminate? False True; quadrants I & IV True; quadrants II & III True; quadrants I & III

Donald Ward

in Mathematics

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Ashley Howard on June 21, 2018

√(1-sin^2(theta))= cos(theta)If we square the equation, we get:1-sin^2(theta) = cos^2(theta)sin^2(theta) + cos^2(theta) = 1 which is TRUE.The other answer lies in the quadrants where sine is positive: I, IVThat leads to the answer: B


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