Question

If one imaginary root of a quadratic equation is $1-i\sqrt{3}$, then the other root will be:

• A. $\sqrt{3}$
• B. $-\sqrt{3}$
• C. $1$
• D. $1+i\sqrt{3}$

Answer 1

The correct option is D $1+i\sqrt{3}$

We know that, imaginary roots always occur in pairs and they are conjugate of each other, so the other root will be the conjugate of the given root $1+i\sqrt{3}$