Question

Evaluate i^15 i^12
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Answer 1

Answer:  15 = -i & 12=1

use the pattern : i, -1, -i, 1

Step-by-step explanation:

i = $\sqrt{-1}$

$i^{2}$ = $\sqrt{-1}$

$i^{3}$ = $\sqrt{-1}$

$i^{4}$ = $\sqrt{-1}$

the pattern just repeats from here

5 = i

6 = -1

7 = -i

8  = 1

9 = i

10 = -1

11 = -i

12  = 1

13 = i

14 = -1

15 = -i

16  = 1