Question

Express in form a+ib

Number(g)

Answer 1

Answer:

I don't know what is the answer

Answer 2

Answer:

(a) 3+4i

(b)

$\frac{3 + 4i}{4 - 3i} \times \frac{4 + 3i}{4 + 3i} = \frac{25i}{25} = i$

(c)

$\frac{2 - 5i}{1 - 4i} \times \frac{1 + 4i}{1 + 4i} = \frac{22 + 3i}{17}$