Calc

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For z1 = 4cis(7pi/6)and z2 = 3ci(pi/3), find z1 · z2 in rectangular form.

A.12 − 12i
B.-12 − 12i
C.12 + 12i
D.12i
E.-12i

  • Calc -

    just multiply moduli and add arguments:
    (4)(3)cis(7pi/6 + pi/3)
    12 cis 3pi/2

    (E)

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