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OpenStudy (anonymous):
Find all solutions to the equation 2sin^2x-sinx=1
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OpenStudy (solomonzelman):
Say, let Sinx=a Solve for a, and then substitute what you get for a, into a=Sinx
OpenStudy (solomonzelman):
\[2\sin^2x-sinx=1~~~~~~->~~~~~2a^2-a=1\]\[2a^2-a-1=0\] can you solve this quadratic equation?
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