Home › AP EAPCET (Engineering) › Mathematics › Complex Numbers and Quadratic Equations › If 4x + i(3x - y) = 3 - 6i with x and y real, th…
If 4x + i(3x - y) = 3 - 6i with x and y real, then y equals
A-33/4
B9/4
C3/4
D33/4
Answer & Solution
Correct answer: D. 33/4
Equating parts gives x = 3/4 and 3x - y = -6, so y = 9/4 + 6 = 33/4.
Related questions
Every real number a can be regarded as the complex numberThe real part of (2 + i)^2 isThe sum of z and its conjugate always equalsThe set of points with |z| = 1 in the complex plane formsIf |z| = 1, then the conjugate of z equalsWhich equation shows that the real number system needs extending?The modulus of a non-real cube root of unity isFor a cube root of unity ω, the value of ω^3 is