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anonymous
 4 years ago
trig identity
anonymous
 4 years ago
trig identity

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[\huge \frac{ sinx2sinx^3 }{ 2\cos^3xcosx } = tanx \]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0is this proving? or simplifying?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the left side is confusing me to the max

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1353299892857:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The first step I factored out sinx and cosx The second step I used the double angle formula for cos2x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0o.O you made it look so easy, how are you so good at these ?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Its all practice, I suggest you don't ask other people and actually spend at least 5 or 10 minutes trying to figure it out. You get better as you do more

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i do try them all out before asking but i ALWAYS get stuck :S
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