5.1.5 Complex Numbers and Roots - Worksheet
Example 1: Express each number in terms of i . 1. − 5 100 2. − 16
1 2
4. − 144
3. − − 32
Example 2: Solve each equation. 5. x 2 = − 9
6. 2 x 2 + 72 = 0
7. 4 x 2 = − 16
8. x 2 + 121 = 0
Example 3: Find the values of x and y that make each equation true. 9. − 2 x + 6 i = ( − 24 y ) i − 14
10. − 4 + ( y ) i = − 12 x − i + 8
Example 4: Find the zeros of each function. 11. f ( x ) = x 2 − 12 x + 45
12. g ( x ) = x 2 + 6 x + 34
Example 5: Find each complex conjugate. 13. − 9 i 14.
15. 8 i − 3
16. + i 6 2
+ i 5 5
242
Made with FlippingBook flipbook maker