Question Number 102581 by bemath last updated on 10/Jul/20

If x+iy = 3+2xi   . find y

Answered by bemath last updated on 10/Jul/20

Answered by Rasheed.Sindhi last updated on 10/Jul/20

   x+iy = 3+2xi       x=3 ∧ y=2x      y=2x=2(3)=6    •^(⌢)  •_(⌣) ^(⌢)

Commented bybemath last updated on 10/Jul/20

⌣^(⌢ • ⌢)

Commented by1549442205 last updated on 10/Jul/20

if given x,y are real then the case x^2 =((−9)/4)  need rejected and y=6 is unique root

Commented bybemath last updated on 10/Jul/20

yes...agree

Answered by Dwaipayan Shikari last updated on 10/Jul/20

x+iy=3+2xi  y=2x   x=3  so y=2.3=6         ⋱⋰⋱⋰⋱⋰⋮…⋮…⋮…

Answered by mathmax by abdo last updated on 10/Jul/20

(1,i)is a base so x+iy =3 +2xi ⇒x=3 and y =2x ⇒x=3 and y =6