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amoodarya Group TitleBest ResponseYou've already chosen the best response.1
first sin5x sin 3x =1/2{cos(5x+3x)  cos (5x3x)}
 one year ago

sat_chen Group TitleBest ResponseYou've already chosen the best response.0
how in the gods name did you get that
 one year ago

amoodarya Group TitleBest ResponseYou've already chosen the best response.1
dw:1359154820627:dw
 one year ago

sat_chen Group TitleBest ResponseYou've already chosen the best response.0
the only trick we know so far are the trigonometric identities and half angle formula
 one year ago

sat_chen Group TitleBest ResponseYou've already chosen the best response.0
so confused ...
 one year ago

amoodarya Group TitleBest ResponseYou've already chosen the best response.1
understand ? i use product to sum formula
 one year ago

sat_chen Group TitleBest ResponseYou've already chosen the best response.0
oh okay thanks
 one year ago

sat_chen Group TitleBest ResponseYou've already chosen the best response.0
ive never seen that format of sum for sine before thanks. is there other ways to do it or is that it
 one year ago

amoodarya Group TitleBest ResponseYou've already chosen the best response.1
other way is to expand sin 5x ,sin 3x but its harder i send there formula 4 you
 one year ago

sat_chen Group TitleBest ResponseYou've already chosen the best response.0
i guess ill have to remember the sum rule then :P
 one year ago

sat_chen Group TitleBest ResponseYou've already chosen the best response.0
the other one you sent is not gonna be much help in the long run probably. thanks a lot though
 one year ago

amoodarya Group TitleBest ResponseYou've already chosen the best response.1
and 3st way write sin5x=sin4x+x and sin 3x=sin4xx so you have conjugate union if expand them it is easier than 2nd way (that i said)
 one year ago
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