If the expression x 2 + x 2 -i x 1+2i x 2 is real, then x is equal to

JEE Main Mathematics question

If the expression is real, then is equal to

Answer: (C)

Multiply numerator and denominator by the conjugate and set the imaginary part to zero. With and : the condition is ,

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-008576