|BSM

Questions

1 / 10

Time

Score

00

Pure Imaginary Numbers Or Real Numbers

Simplify: $\left(-i\right)^{21}$ .

$-1$

$-i$

$1$

Simplify: $i^{10}$ .

$-1$

$i$

$4i$

Simplify: $\sqrt{-\frac{1}{49}}$ .

$\frac{i}{7}$

$\frac{3}{2}i$

$\frac{4}{3}i$

Simplify: $\sqrt{-121}$ .

$11i$

$6i$

$-4i$

Simplify: $\sqrt{-\frac{4}{36}}$ .

$-i$

$\frac{3}{2}i$

$\frac{1}{3}i$

Simplify: $\left(3i\right)^3$ .

$-8i$

$8i$

$-27i$

Simplify: $i^{12}$ .

$-1$

$i$

$1$

Simplify: $\left(i\right)^8$ .

$-i$

$i$

$1$

Simplify: $\sqrt{-81}$ .

$-\sqrt{13}i$

$\sqrt{13}i$

$9i$

Simplify: $\left(-1\right)^{-\frac{42}{2}}$ .

$-i$

$i$

$-1$