>>123082
How old are you seriously, you got it already.
>>123082
Feel free to send me half the gold stars your teacher will give you for this magnificent proof
>>123259
Why would you even do that?
>>123082
What's so hard about this? Multiply lhs by (1 -cosx)/(1-cosx)
try in the board of homework /hm/
>>123082
i dont understand anon, the statement at the top is true for all x. this can be shown very easily by multiplying BOTH sides by (1+ cos x) and then converting the right side via trig identities.
You end up with sin(x)cos(x) = sin(x)cos(x)
>>123692
lol
I'm bored because AP tests are over, hope this helps