Question

solve this please..​

Answer 1

Answer:

$z = \frac{1 + 7i}{3 - 4i} = \frac{(1 + 7i)(3 + 4i)}{(3 - 4i)(3 + 4i)} \\ \\ z= i - 1 \\ \\ |z| = \sqrt{2} \\ \\ angle = - \frac{\pi}{4} \\ \\ polar \: form = \sqrt{2} ( \frac{1}{ \sqrt{2} } - \frac{1}{ \sqrt{2} } i) \\ \\ = 1 - i$