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OpenStudy (anonymous):
cosx(tan^2x)=cosx
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OpenStudy (anonymous):
Question doesn't seem right to me!
OpenStudy (anonymous):
the questions is find all the solutions to cosx(tan^2x)=cosx
OpenStudy (dumbcow):
move the cos on right side over, then factor out the cos --> cos x ( tan^2 - 1) = 0
OpenStudy (anonymous):
thank you
OpenStudy (anonymous):
dumbcow great! this question was easy :)
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