SOLUTION: show that the given equation is an identity; sin(theta+60degrees)-cos(theta+30degrees)=sintheta

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Question 944893: show that the given equation is an identity; sin(theta+60degrees)-cos(theta+30degrees)=sintheta
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
show that the given equation is an identity; sin(theta+60degrees)-cos(theta+30degrees)=sintheta
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sin%28x%2B60%29-cos%28x%2B30%29=sinx
start with left side:
sin%28x%2B60%29-cos%28x%2B30%29
%28sinxcos60%2Bcosxsin60%29-%28cosxcos30-sinxsin30%29



verified: left side=right side