Difference in result - MaplePrimes

Question:Difference in result

Posted: Jan GvK 20 Product: Maple

April 13 2014

Hello,

Can anyone explain to me why there is a difference between:

f := int((A*sin(omega*t+phi)-B*sin(omega*t))^2, t);

and the expanded version:

f := int((A*sin(omega*t)*cos(phi)+A*cos(omega*t)*sin(phi)-B*sin(omega*t))^2, t);

Thanks

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