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OpenStudy (anonymous):
((cos^3 10+sin^3 20)÷(cos 10+sin 20)=?????
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OpenStudy (anonymous):
Oh boy XD. Well wait a minute. Don't they cancel each other out? And all you will be left with is cos^2+sin^2? I think there is something I am missing unless the point is to cross out. Perhaps you can't cancel out binomials in this expression.
OpenStudy (anonymous):
^ which equals 1 :)
OpenStudy (anonymous):
How did u get that?? Please tell the process .and very thanks for the answer
OpenStudy (anonymous):
|dw:1371402026500:dw|
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