This is a mathematics help site so it is customary to use \(\displaystyle \bf{i}\) not \(\displaystyle j\) for the complex unit.if x is real show that (2+j)e^(1+j3)x + (2-j)e^(1-j3)x is also real
if x is real show that (2+j)e^(1+j3)x + (2-j)e^(1-j3)x is also real