Question

$a + ib < c + id$ is meaningful only when

• A. $a^2+c^2=0$
• B. $b^2 + c^2 =0$
• C. $b^2 + d^2 =0$
• D. $a^2 +d ^2 =0$

Answer 1

Answer: (C)

$b^2 + d^2 =0$

Answer 2

Meaningful only if $b=0$, $d=0$ i.e., if $b^2+d^2=0$