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OpenStudy (et365):
Simplify and write the trigonometric expression in terms of sine and cosine: tan^2x-sec^2x?
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OpenStudy (freckles):
do you know what tan(x) is in terms of sin(x) and cos(x)?
OpenStudy (et365):
Yes I know them in those terms but I am unsure of how to go about it.
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