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What is the value of i^n if the remainder of n/4 is 2?A.-i B.1c. iD. -1

User J Jiang
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1 Answer

3 votes

Answer:

D. -1

Step-by-step explanation:

Given the quotient:


(n)/(4)

If the remainder of n/4 is 2, it means that the number n can be defined as follows:


\begin{gathered} n=4x+2 \\ x\text{ the number of multiples of 4} \end{gathered}

Clearly, the number n above is an even number.

When the complex number 'i' is raised to an even power, say 2, we have:


\begin{gathered} i^2=(\sqrt[]{-1})^2 \\ =-1 \end{gathered}

Therefore, the value of i^n if the remainder of n/4 is 2 is -1.

User Jeff Cyr
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