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OpenStudy (anonymous):
verify the identity cosx 1-cosx _______ = _________ 1+secx tan²x
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OpenStudy (anonymous):
hi sandy...
OpenStudy (anonymous):
hi @dpaInc :)
OpenStudy (anonymous):
let's start with the left side to get to the right side...
OpenStudy (anonymous):
alright
OpenStudy (anonymous):
|dw:1337804968300:dw| all i did was multiply by the conjugate of the denominator. can you tell me what do i have in the denominator when i multiply it out?
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