URGENT! When we solve (cos²x - 1 = 0) by adding and taking the square root, how come we get the same answer when we factor (cos²x - 1) and use the zero product property to find …

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Mike Wodarczyk · Answer 1 · 2021-07-10T01:09:48+0000

Answer:

It is the same answer because you still have the same x-1 and he exponent of 2. It doesn't matter about the zero unless you are trying to find the angle of a triangle.

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URGENT! When we solve (cos²x - 1 = 0) by adding and taking the square root, how come we get the same answer when we factor (cos²x - 1) and use the zero product property to find …

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