1) Evaluate |8 + 2i| a) 2√15 b) 2√17 c) 68 d) 60 2) Evaluate |i| a) -1 b) i c) 1 d) √-1 3) Evaluate |4i| a) 16 b) -4 c) 4 d) √-4 4) Evaluate |7 - 5i| a) √74 b) √24 c) 24 d) 74 5) Simplify (4 + 2i) + (-3 – 5i) a) 1 + 3i b) 1 - 3i c) 7 - 3i d) -7 - 3i 6) Simplify i925 a) -1 b) i c) 1 d) -i 7) Simplify i460 a) √-1 b) 1 c) -1 d) i 8) How do you find the conjugate of a complex number? a) Change the sign of both the real and imaginary parts. b) Swap the real and imaginary parts. c) Change the sign of its imaginary part. d) Swap the real and imaginary parts, then change the sign of them both. 9) What is the conjugate of the complex number 2 - 7i ? a) 7 + 2i b) -7 + 2i c) -2 - 7i d) 2 + 7i 10) Find the argument of 2i a) 2 b) 1 c) 0 d) -1

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