$\"\"$

The expression is $\"\"$

$\"\"$ (Factor the exponent)

$\"\"$ (Rewrite the expression in terms of $\"\"$ ) $\"\"$

$\"\"$ (Substitute the imaginary unit value $\"\"$ )

$\"\"$ (Simplify: $\"\"$ )

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

The simplified expression is i.