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What is the complex conjugate of 5 - 7i?
A5 + 7i
B7 + 5i
C-5 - 7i
D-5 + 7i
Answer & Solution
Correct answer: A. 5 + 7i
The conjugate keeps the real part and reverses the sign of the imaginary part, so 5 - 7i becomes 5 + 7i.
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