12 grade maths others
Conjugate of complex number 1 + 2i is
- (i) −1 − 2i
- (ii) −1 + 2i
- (iii) 1 − 2i
- (iv) 1 − i
Conjugate of complex number 1 + 2i is
- (i) −1 − 2i
- (ii) −1 + 2i
- (iii) 1 − 2i
- (iv) 1 − i
1 Answer
Askiitians Tutor Team
Approved Tutor Answer9 Months agoThe conjugate of a complex number is found by changing the sign of its imaginary part. For the complex number 1 + 2i, the imaginary part is 2i. Therefore, the conjugate is 1 - 2i.
Options Analysis
- (i) −1 − 2i
- (ii) −1 + 2i
- (iii) 1 − 2i
- (iv) 1 − i
Among the options provided, the correct answer is (iii) 1 − 2i.
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