Alyza P.

asked • 04/26/20

Precalculus Questions

1 .Write the complex number in polar form with argument θ between 0 and 2π.


1 + 3 i 5i(1 + i)




2.Find the product z1z2 and the quotient z1/z2. Express your answers in polar form.

z1 = 2(cos(5π/4) + i sin(5π/4),  z2 = 5(cos(π) + i sin(π))

z1z2=

z1/z2.=



3. Find the indicated power using De Moivre's Theorem. (Express your fully simplified answer in the form a + bi.).

 (2/2 + 2/2 i)8 (1 − i)18



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