Final answer:
The result of subtracting the complex numbers (21+9i) and (13-22i) is 8 + 31i.
Step-by-step explanation:
The student is asking for the result of the subtraction of two complex numbers: (21+9i) - (13-22i). To solve this, we subtract the real parts and the imaginary parts separately:
- Real parts: 21 - 13 = 8
- Imaginary parts: 9i - (-22i) = 9i + 22i = 31i
Therefore, the result is 8 + 31i.