express in polar form r cisθ for:
a) -1-i
b) -3+4i (to 2 decimal places of a degree)
c) use your answers to parts a) and b) to simplify (-3+4i)/(-1-i)^2 in polar form.

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then you need \[\theta\] which you get by solving
\[tan(\frac{b}{a})=\theta\]

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