Find the power of i.
-$( 3 i ) ^ { 4 }$
A) $81 \mathrm { i }$
B) $- 81 \mathrm { i }$
C) $- 81$
D) 81

Name: Find the power of i. -$( 3 i ) ^ { 4 }$ A) $81 \mathrm { i }$ B) $- 81 \mathrm { i }$ C) $- 81$ D) 81
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Question

Quizplus · Accepted Answer

The power of $i$ can be simplified using the fact that $i^2 = -1$. Therefore, $(3i)^4 = 81i^4$, and since $i^4 = (i^2)^2 = (-1)^2 = 1$, the result is $81 \times 1 = 81$.

Find the Power of I (3i)4( 3 i ) ^ { 4 }(3i)4

Find the Power of I $( 3 i ) ^ { 4 }$