The value of i ^ 243 is equal to - Vidyadip

MCQ

The value of $i ^{243}$ is equal to

A
i
✓
$- i$
C
-1
D
1

✓

Answer

Correct option: B.

$- i$

(B)
$(\text { i })^{243}=\left(\text { i }^4\right)^{60} \cdot$ i $^3$
$=- i \quad \ldots \ldots\left[\because i ^4=1, i ^3=- i \right]$

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