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[" (ir) "(1)/(21/6)csin(A+2B)=(sqrt(3))/...

[" (ir) "(1)/(21/6)csin(A+2B)=(sqrt(3))/(31T)tan(A-B)=(1)/(sqrt(3))],[(v)(1)/(2 pi f_(6))sin(A+B)=1(sqrt(3))/(2)(1)/(3 pi T)cos(A+4B)=],[" (v) "=1(1)/(211)cos(A-B)=]

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