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OpenStudy (anonymous):
How would I simplify -2sin^2x+sinx=-1 to the point where I could solve.
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OpenStudy (anonymous):
\[-2\sin^2x+sinx=-1\]
OpenStudy (anonymous):
try factoring out sinx, \[\sin x (1-2\sin x)=-1\] then use trig identity sinx(cos 2x)=-1 then i don't know what's next, sorry..
OpenStudy (anonymous):
ty
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