I have this question --> [tex] \frac {\cos (x) + \sin (x)} {\cos (x) - \sin (x)} [/tex] how do you find an expression that is eqivalent to this using trig identities? I have no clue every time I do this problem the top and bottom cancel out plus none of the terms can be replaced with trig identities, can somone plz help me out ?(adsbygoogle = window.adsbygoogle || []).push({});

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# Homework Help: An expression equivalent to [cos(x)+sin(x)]/[cos(x)+sin(x)]

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