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Popular >

simplify 7e^{-x}cos(x)

Solution

simplify

7 e^{- x} cos (x)

Solution

\frac{7 cos ( x )}{e ^{x}}

Solution steps

7 e^{- x} cos (x)

Apply exponent rule:

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

= 7 \cdot \frac{1}{e ^{x}} cos (x)

Multiply fractions:

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

= \frac{1 \cdot 7 cos ( x )}{e ^{x}}

Multiply the numbers:

1 \cdot 7 = 7

= \frac{7 cos ( x )}{e ^{x}}

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Frequently Asked Questions (FAQ)

What is 7e^{-x}cos(x) ?
The solution to 7e^{-x}cos(x) is (7cos(x))/(e^x)