Home
Class 12
MATHS
If one root fo the quadratic equation ix...

If one root fo the quadratic equation `ix^(2)-2(i+1)x+(2-i)=0,i=sqrt(-1)` is `2-i`, the other root is

A

`3+i`

B

`3+sqrt(-1)`

C

`-1+i`

D

`-1-i`

Text Solution

Verified by Experts

The correct Answer is:
D

Since all the coefficients of given equation are not real.
Therefore, other root `!=3+i`
Let other root be `alpha`.
Then sum of the roots`=(2(1+i))/i`
`impliesalpha+3-i=(2(1+i))/i`
`impliesalpha+3-i=2-2i`
`:.alpha=-1-i`
Promotional Banner

Similar Questions

Explore conceptually related problems

If one root of the quadratic equation ix^2-2(i+1)x +(2-i)=0,i =sqrt(-1) is 2-i , the other root is

Find the roots of the quadratic equation 6x^(2)-x-2=0 .

If one root of the equation x^(2)-ix-(1+i)=0,(i=sqrt(-1)) is 1+i , find the other root.

The equation z^(2)-i|z-1|^(2)=0, where i=sqrt(-1), has.

If one roots of the equation x^(2)-sqrt(5)x-19=0 is (9+sqrt(5))/2 then find the other root.

The roots of the equation x^(2)-2sqrt(3)x+3=0 are

Find the roots of the quadratic equations by factorisation: 2x^(2)-x+(1)/(8)=0

If alpha, beta are the roots of the quadratic equation x^2 + bx - c = 0 , the equation whose roots are b and c , is

Find the roots of the quadratic equations by factorisation: 3x^(2)-5x+2=0

Find the roots of the quadratic equations by factorisation: 2x^(2)+x-6=0