Ask Question
7 July, 06:35

What values of c and d would make the following expression represent a real number? i (2 + 3i) (c + di)

choices: A) c = 2, d = 3 B) c = - 2, d = 3 C) c = 3, d = - 2 D) c = - 3, d = - 2

+3
Answers (1)
  1. 7 July, 07:00
    0
    The product will be 2ci+2di^2+3ci^2+3di^3 = 2ci-2d-3c-3di = - 2d-3c+i (2c-3d) to get a real number 2c - 3d = 0 so, 2c=3d from the options it is possible when c=-3 and d=-2 hence, the answer is option D)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “What values of c and d would make the following expression represent a real number? i (2 + 3i) (c + di) choices: A) c = 2, d = 3 B) c = - ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers