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Usrthe Demeivers therem andsimpify[cos + 7π/13+i sin 7π/13]4____________________[cos4π/13-i sin 4π/13]6​

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ANSWER:

SIN(π4)cos(π3)+cos(π4)sin(π3) sin ( π 4 ) cos ( π 3 ) + cos ( π 4 ) sin ( π 3 ). The EXACT value of sin(π4) sin ( π 4 ) is √22 2 2 . √22cos(π3)+cos(π4)sin(π3) ...



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