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ElleCullen
Group Title
sin(a  b) = sina cosb + cosa sinb for all values of a and b. True or false?
 3 months ago
 3 months ago
ElleCullen Group Title
sin(a  b) = sina cosb + cosa sinb for all values of a and b. True or false?
 3 months ago
 3 months ago

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student_basil Group TitleBest ResponseYou've already chosen the best response.1
false, because the rules for sine a+b identities are. \[\sin(a +b) = \sin(a) ~\cos(b) + \cos(a) ~\sin(b)\]\[\sin(a b) = \sin(a) ~\cos(b)  \cos(a) ~\sin(b)\]
 3 months ago

student_basil Group TitleBest ResponseYou've already chosen the best response.1
you have two of them mixed, and two sides are for sure not always equal.
 3 months ago

ElleCullen Group TitleBest ResponseYou've already chosen the best response.0
Thank you :)
 3 months ago

student_basil Group TitleBest ResponseYou've already chosen the best response.1
\(\normalsize\color{black}{ \bf You}\) \(\normalsize\color{black}{ \bf welcome~!}\)
 3 months ago
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