Fully simplify the expression
(4i)(−i)
The given expression is:
(4i)(-i)
We can simplify this expression by multiplying the coefficients and adding the exponents of the imaginary unit 'i'.
4 * (-1) = -4
i^1 * i^1 = i^(1+1) = i^2 = -1
Therefore, the fully simplified expression for (4i)(-i) is:
-4 * -1 = 4