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OpenStudy (abbles):
Why is sin(2x) = -2 not possible?
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OpenStudy (abbles):
I was given this question: Find all solutions to the equation (sinx - cosx)^2 = 3 And the answer was: There are no solutions. You know that (sinx - cosx)^2 = 1 - sin(2x). Therefore, 1 - sin(2x) = 3 This equation has no solutions since the above equation simplifies to sin(2x) = -2, which is impossible.
OpenStudy (abbles):
Why is it impossible?
OpenStudy (karim728):
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