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What is i^84? a) -i b) i c) -1 d) 1

2 Answers

1 vote

Answer: 1

Explanation:

User Prasanna Natarajan
by
8.3k points
1 vote

Answer:

D) 1

Explanation:

When you start raising i to certain powers, you begin to notice a pattern.


i^1=i \\\\i^2=-1 \\\\i^3=-i \\\\i^4=1 \\\\i^5=i \\\\ i^6=-1 \\\\ i^7=-i \\\\i^8= 1

This cycle repeats forever. Since 84 is a multiple of 4, i^84 must be 1. Hope this helps!

User AjayKumar
by
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