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Q.
$a+i b >c+i d$ can be explained only when
Complex Numbers and Quadratic Equations
Solution:
Two complex numbers are either equal or not equal. Comparison of complex numbers is not possible i.e., inequality does not exist for complex numbers.
: If $a+i b>c+i d$ this comparision is only possible when it is purely real.
Hence, $b=d=0$.