Simplify the Expression $i ^ { 21 }$ A) $- i$ B) $- 1$

question 100

Multiple Choice

Simplify the expression. $i ^ { 21 }$

• A) \(- i\)
• B) \(- 1\)
• C) \(- 10\)
• D) 1
• E) \(\quad i\)

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