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OpenStudy (anonymous):
Prove the identities:
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OpenStudy (chihiroasleaf):
what identities?
OpenStudy (anonymous):
OpenStudy (anonymous):
That one
OpenStudy (chihiroasleaf):
change cot into 1/tan , then simplify the fractions, can you?
OpenStudy (anonymous):
tan|dw:1349789612912:dw| solve this further use 1+ tan ^2 x = sec^2 x
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