## Calculus: Early Transcendentals 8th Edition

$2 - i$
Step 1: Simplify what is inside of the conjugate expression: $2i(\frac{1}{2}- 1) = i - 2i^2$ Step 2: We remember that $i^2$ is equivalent to $-1$, so we simplify $i -2i^2$ to $i + 2$ Step 3: The conjugate of $i + 2$, by the laws of conjugates, is $2 - i$