Math Help - Prove if following complex statement is true

1. Prove if following complex statement is true

how to prove if the below statements are true

(a) $arg \bar{z} = -arg z$if z is not a real number

2. Re: Prove if following complex statement is true

Originally Posted by flametag3
how to prove if the below statements are true
(a) $arg \bar{z} = -arg z$if z is not a real number
$\overline {r\cos (\theta ) + i\sin (\theta )} = r\cos (\theta ) - ir\sin (\theta ) = r\cos ( - \theta ) + ir\sin ( - \theta )$