Complex Arithmetic/Examples/(5 + 5i) (3 - 4i)^-1 + 20 (4 + 3i)^-1

Example of Complex Arithmetic

 * $\dfrac {5 + 5 i} {3 - 4 i} + \dfrac {20} {4 + 3 i} = 3 - i$

Proof
Then:

Finally: