Question

iv)
(2+i)/(3-i) (1+2i) express following in a+ib, state value of a and b ​

Answer 1

Answer:

Step-by-step explanation:

first rationalise the first term,

2+i/3-i

=$\frac{2+i}{3-i}$ * $\frac{3+i}{3+i}$

=$\frac{5+5i}{10}$

now multiply it with the second term,u get

$\frac{15i-5}{10}$

seperate the two terms,

$\frac{15i}{10}$+(-$\frac{5}{10}$)

therefore a=3/2 and b = -1/2