For Exercises 27–30, simplify the powers of i. (See Example 2) 27. а. 20 b. 29 28. а. 32 b. 47 с. 50 29. а. 37 d. i 41 b. i3 c. 66 -37 30. а. i103 d. 27 b. i c. 82 -103 d. i 82 с. 52 d. i 52

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