Mark the Correct alternative in the following:
The equation of the smallest degree with real coefficients having 1 + i as one of the roots is
for the complex roots it will exists in pair.
Hence the roots are 1+i and 1-i
Formula for quadratic equation is (x-a) (x-b) = 0
(x-1-i) (x-1+i) = 0
x2-x+ix-x+1-i-ix+i-i2=0
x2-2x+2 = 0.