Adding Complex Numbers: (-2 + 3i) + (7 - 6i)
Complex numbers are expressed in the form a + bi, where 'a' and 'b' are real numbers and 'i' is the imaginary unit, where i² = -1. To add complex numbers, we simply add the real and imaginary components separately.
Let's break down the addition of (-2 + 3i) + (7 - 6i):
1. Identify the real and imaginary parts:
- (-2 + 3i): Real part = -2, Imaginary part = 3
- (7 - 6i): Real part = 7, Imaginary part = -6
2. Add the real parts:
- -2 + 7 = 5
3. Add the imaginary parts:
- 3 + (-6) = -3
4. Combine the results:
- The sum of the real parts is 5.
- The sum of the imaginary parts is -3.
Therefore, the standard form of (-2 + 3i) + (7 - 6i) is 5 - 3i.