Test: Complex Numbers I - Ambitious

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Question 1:   Solve: ( 7+5i )( 2+3i )
52i
5+2i
12+8i
7
Question 2:   Solve: ( 2+3i )( 3+4i )
6+17i
212i
4+17i
612i
Question 3:   Simplify: i 13
i
1
1
i
Question 4:   Simplify: ( 34i ) 2
724i
916i
i
2524i
Question 5:   Simplify: (2 - 5i)(2 + 5i)
29
425i
16
4+25i
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