simplify sin(A+B)-sin(A-B
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=sinAcosB+ cosAsinB - sinAcosB + cosAsinB
=2cosAsinB
Answered by
0
= sin (A+B) - sin(A-B)
= sinAcosB + cosAsinB - SinAcosB + cosAsinB
= 2cosAsinB
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