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Find the product z1 72 . z1 = 4 (cos 170 + i sin 170 ) and z2 = 7 (cos 160 + i sin
Find the product z1 72 . z1 = 4 (cos 170 + i sin 170 ) and z2 = 7 (cos 160 + i sin 160 ) z1 22 = 28 (cos 10 + i sin 109) O z122 = =(cos 10 + i sin 109) O z122 = (cos 330 + i sin 330) O z1 72 = 28 (cos 330 + i sin 330 )
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