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Popular >

simplify 4e^{-x}cos(x)

Solution

simplify

4 e^{- x} cos (x)

Solution

\frac{4 cos ( x )}{e ^{x}}

Solution steps

4 e^{- x} cos (x)

Apply exponent rule:

a^{- b} = \frac{1}{a ^{b}}

= 4 \cdot \frac{1}{e ^{x}} cos (x)

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 4 cos ( x )}{e ^{x}}

Multiply the numbers:

1 \cdot 4 = 4

= \frac{4 cos ( x )}{e ^{x}}

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Frequently Asked Questions (FAQ)

What is 4e^{-x}cos(x) ?
The solution to 4e^{-x}cos(x) is (4cos(x))/(e^x)