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## Answers

Rationalise the eqn

⇒(3+5i)/(1+2i) x (1-2i)/(1-2i)

⇒(3-6i+5i10)/1+4 {∵ (a+b)(a-b) = a² -b²}

⇒(13- 1i)/5

(x+yi) ⇒13/5 -1/5i

Log in to add a comment

Rationalise the eqn

⇒(3+5i)/(1+2i) x (1-2i)/(1-2i)

⇒(3-6i+5i10)/1+4 {∵ (a+b)(a-b) = a² -b²}

⇒(13- 1i)/5

(x+yi) ⇒13/5 -1/5i