+118723 Well if 240 is in degrees then
$$\\100(cos240+isin240) \\\\
=100(-cos60-isin60)\\\\
=100(-\frac{1}{2}-i\frac{\sqrt{3}}{2})\\\\
=-50-50\sqrt{3}\;i\\\\$$
----------------------------------------
You could also write it in exponential form like this :)
$$240degrees = \frac{240\pi}{180}\;radians\;\;=\frac{4\pi}{3}$$
$$100(cos240+isin240)=100e^{4\pi\;i/3}$$
+118723 Well if 240 is in degrees then
$$\\100(cos240+isin240) \\\\
=100(-cos60-isin60)\\\\
=100(-\frac{1}{2}-i\frac{\sqrt{3}}{2})\\\\
=-50-50\sqrt{3}\;i\\\\$$
----------------------------------------
You could also write it in exponential form like this :)
$$240degrees = \frac{240\pi}{180}\;radians\;\;=\frac{4\pi}{3}$$
$$100(cos240+isin240)=100e^{4\pi\;i/3}$$
