Question

What is the value of left-parenthesis negative 5 plus 5 i right-parenthesis plus left-parenthesis 4 minus 4 i right-parenthesis? Answer options with 5 options A. 0 B. negative 2 C. negative 2 i D. negative 1 plus i E. negative 1 minus i

Answer 1

To find the sum, we add the real parts and the imaginary parts separately.

Real part: -5 + 4 = -1
Imaginary part: 5i - 4i = i

Therefore, the sum is -1 + i, which corresponds to option D: negative 1 plus i.