Complex Numbers
The conjugate of (3 - 2i)/(1 + i) is
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Solution
(1 + 5i)/2
- Rationalize Denominator: Multiply numerator and denominator by the conjugate of the denominator (1āi):
- 1+i3ā2iāĆ1āi1āiā
- Calculation:
- Numerator: (3ā2i)(1āi)=3ā3iā2i+2i2=3ā5iā2=1ā5i.
- Denominator: (1+i)(1āi)=12āi2=1+1=2.
- Standard Form: The value is 21ā5iā=21āā25āi.
- Find Conjugate: The conjugate changes the sign of the imaginary part.
- Conjugate=21ā+25āi=21+5iā.
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About This Question
- Subject
- mathematics
- Chapter
- complex numbers and quadratic equations
- Topic
- complex numbers
- Difficulty
- Medium
- Year
- 2025
This medium difficulty mathematics question is from the chapter complex numbers and quadratic equations, covering the topic of complex numbers. It appeared in the 2025 exam. Practice this and similar questions to strengthen your understanding of complex numbers and quadratic equations concepts.
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