If (a+bi)² is purely real and a ≠ 0, then relation between a and b is?
- a = 0
- b = 0
- b = ±
- None of these
Explanation
(a + bi)² = a² - b² + 2abi
Purely real means imaginary part = 0
So 2ab = 0
Given a ≠ 0, then b = 0
Last verified on 06-05-2026
Related MCQs
- -72
- -60
- -48
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- {1}
- {-1}
- {0}
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
