Question

how to prove that root of an equation is complex?​

Answer 1

Answer:

Proof: To prove the above theorem let us consider the quadratic equation of the general form: ax2 + bx + c = 0 where, the coefficients a, b and c are real. Let α + iβ (α, β are real and i = √-1) be a complex root of equation ax2 + bx + c = 0.