Home › CBSE Class 11 (Commerce) › Mathematics › Complex Numbers and Quadratic Equations › Two complex numbers a + ib and c + id are equal …
Two complex numbers a + ib and c + id are equal exactly when
Aa = d and b = c
Ba = c only
Ca + b = c + d
Da = c and b = d
Answer & Solution
Correct answer: D. a = c and b = d
Equality of complex numbers needs both the real parts and the imaginary parts to match.
Related questions
If x is real and |x + 3i| = 5, which values can x take?Which property explains why (2 + 3i)(1 − i) equals (1 − i)(2 + 3i)?Because complex numbers obey the usual associative, commutative and distributive laws, whaWhat is the real part of the reciprocal of a + ib (not both zero)?If z = −z̄ for a complex number z, which statement is correct?If a complex number z equals its own conjugate, what kind of number is z?For z = a + ib, the sum z + z̄ equals what?Taking the conjugate of the conjugate of z gives which result?