Answer: A. The complex number 13 - i in standard form is 13 - i.
B. The complex number 13 - i can also be written as 13 + (-1)i.
C. The real part of the complex number 13 - i is 13, and the imaginary part is -1.
D. The complex number 13 - i can be represented as a complex conjugate, which is 13 + i.
E. In standard form, the complex number 13 - i is written as 13 - i.
Note: Standard form of a complex number is written as a + bi, where a is the real part and bi is the imaginary part. In standard form, the imaginary unit i is used to represent the square root of -1.
Explanation: