Find z1z2. Write the answer in polar form with the argument between 0° and 360°.z1 = 3(cos 33° + i sin 33°), z2 = 6(cos 16° + i sin 16°)
A. 18(cos 49° + i sin 49°)
B. 9(cos 168° + i sin 168°)
C. 18(cos 17° + i sin 17°)
D. 9(cos 49° + i sin 49°)
Answer: A
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