how do i proof this: ((2cos(a)-cos^2(a))/(sin^2(a)+cos(a)+1))=1/(1+sec(a))
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Originally Posted by ahmedb how do i proof this: ((2cos(a)-cos^2(a))/(sin^2(a)+cos(a)+1))=1/(1+sec(a))
is there a program where you got this from? or is it your brain?
Originally Posted by ahmedb is there a program where you got this from? or is it your brain? My brain, which is better than any computer program
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