4. If \(x-iy=\sqrt{\frac{a-ib}{c-id}}\), prove that \((x^2+y^2)^2=\frac{a^2+b^2}{c^2+d^2}\).

Complex Numbers and Quadratic Equations

Miscellaneous Exercise

Ncert Solutions class 11 Complex Numbers and Quadratic Equations Miscellaneous Exercise