Complex Number ChallengeOnline version Test your knowledge on operations with complex numbers in this fun quiz game! by Diha 1 What is the result of (3 + 4i) + (1 + 2i)? a 5 + 4i b 3 + 5i c 2 + 2i d 4 + 6i 2 What is the product of (2 + 3i) and (4 - i)? a 11 + 10i b 5 + 15i c 6 + 9i d 8 + 12i 3 What is the conjugate of the complex number 5 - 2i? a -5 + 2i b 2 - 5i c 5 - 2i d 5 + 2i 4 What is the result of (1 + i) - (2 - 3i)? a 3 + 2i b 1 - 2i c -1 + 4i d 0 + 4i 5 How do you divide (6 + 8i) by (2 + 2i)? a 2 + 2i b 1 + 1i c 3 + 4i d 4 + 3i 6 What is the real part of the complex number 7 + 5i? a 5 b 12 c 7 d 0 7 What is the square of the complex number (1 + i)? a 2i b 2 + 2i c 1 + 2i d 1 - 2i 8 What is the result of (2 + 3i) + (2 - 3i)? a 4 b 2 + 6i c 6i d 0
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