Adding Complex Numbers: (2 + 3i) + (-4 + i)
This article will demonstrate the addition of two complex numbers, (2 + 3i) and (-4 + i).
Understanding Complex Numbers
Complex numbers are numbers that consist of a real part and an imaginary part. The imaginary part is denoted by the symbol 'i', where i² = -1.
Adding Complex Numbers
To add complex numbers, we simply add the real parts and the imaginary parts separately.
Example: (2 + 3i) + (-4 + i)
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Identify the real and imaginary parts:
- Real part of (2 + 3i) is 2.
- Imaginary part of (2 + 3i) is 3.
- Real part of (-4 + i) is -4.
- Imaginary part of (-4 + i) is 1.
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Add the real parts:
- 2 + (-4) = -2
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Add the imaginary parts:
- 3 + 1 = 4
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Combine the results:
- The sum of the real parts is -2.
- The sum of the imaginary parts is 4.
Therefore, (2 + 3i) + (-4 + i) = -2 + 4i.
Conclusion
Adding complex numbers is straightforward. We simply combine the real and imaginary parts separately to obtain the final complex number.