Which of the following equations is CORRECT? O sinA cosB =1/2[cos(A -B)-cos(A+B)] O cosu-cosv= -2 sin(u+v)/2) sin(u-v)/2) O sinA cosB=1/2 [sin(A+B)-sin(A-B)] O sinu-sinv=-2 sin(u+v)/2) sin(u-v)/2

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