Solution:
(i) 
Simplify and express in the standard form of 
![\left.i^{2}=-1\right]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-b7bfd584cdae154ce666a3e0c2bba027_l3.png "Rendered by QuickLaTeX.com")
Multiplying and dividing with 
![\begin{array}{l} =1 /(3+4 i) \times(3-4 i) /(3-4 i)] \\ =(3-4 i) /\left(3^{2}-(4 i)^{2}\right) \\ =(3-4 i) /\left(9-16 i^{2}\right) \\ =(3-4 i) /(9-16(-1))\left[\text { since, } i^{2}=-1\right] \\ =(3-4 i) / 25 \end{array}](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-1cba3a2f0695ac603a86ca44b2eee75e_l3.png "Rendered by QuickLaTeX.com")
As a result, the values of 
(ii) 
Simplify and express in the standard form of 
Multiplying and dividing with 
As a result, the values of 
Express the following complex numbers in the standard form a + ib:
(i) 
(ii) (1 – i) / (1 + i)
