Calculus Examples

$\sqrt{4 e^{- 2 x}}$

Step 1

Rewrite $4 e^{- 2 x}$ as ${(2 e^{- x})}^{2}$ .

$\sqrt{{(2 e^{- x})}^{2}}$

Step 2

Pull terms out from under the radical, assuming positive real numbers.

$2 e^{- x}$