Find the product of the complex numbers. Leave your answer in polar form. 21 = 2( cos 70° + i sin 70°) 22 = 4( cos 80° + i sin 80°) + i sin ) (Simplify your answer. Use integers or fractions for any numbers in the expression.)

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A: I am attaching image so that you understand each and every step.

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A: The given system of equations,3x+7y+4z=13x-y+3z=12x+7y+3z=1

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