Question
Perform the following operations and express your answer in the form $a+b i$.$$\frac{5-\sqrt{-144}}{3+\sqrt{-16}}$$
Step 1
We know that $\sqrt{-1} = i$ and $\sqrt{a^2} = a$. So, $\sqrt{-144} = \sqrt{144} \cdot \sqrt{-1} = 12i$ and $\sqrt{-16} = \sqrt{16} \cdot \sqrt{-1} = 4i$. Show more…
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