JEE MATHEMATICS MCQ: COMPLEX NUMBERS

1 Easy

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Application +4 | -1

x+i y=\sqrt{\frac{a+i b}{c+i d}}

, then the value of

\left(x^2+y^2\right)^2

View answer and explanation

Correct option: A

\frac{a^2+b^2}{c^2+d^2}

Option A (

\frac{a^2+b^2}{c^2+d^2}

) is correct because multiplying the complex number by its conjugate and squaring the result gives the correct expression.

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