If is a complex number such that , then
is purely imaginary
Explanation for the correct option.
Find the real and imaginary part of .
Let be a complex number.
Now the conjugate of is given as: .
It is given that so substitute the values in the equation and simplify.
So the real part of the complex number is .
So, the complex number is purely imaginary that is .
Hence, the correct option is B.