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babydoll332
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Verify the identity.
sin (x + y)  sin (x  y) = 2 cos x sin y
 one year ago
 one year ago
babydoll332 Group Title
Verify the identity. sin (x + y)  sin (x  y) = 2 cos x sin y
 one year ago
 one year ago

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babydoll332 Group TitleBest ResponseYou've already chosen the best response.0
@zordoloom
 one year ago

zordoloom Group TitleBest ResponseYou've already chosen the best response.1
Does it matter from which side you work from?
 one year ago

babydoll332 Group TitleBest ResponseYou've already chosen the best response.0
no i dont think so but i need to know what to do step by step plz
 one year ago

zordoloom Group TitleBest ResponseYou've already chosen the best response.1
Do you know the formula sin(a+b)=sinacosb+cosasinb?
 one year ago

zordoloom Group TitleBest ResponseYou've already chosen the best response.1
Give me like 5 min. I'll write it out.
 one year ago

babydoll332 Group TitleBest ResponseYou've already chosen the best response.0
ur amazing
 one year ago
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