en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 2^{-x}cos(x)

Solution

simplify

2^{- x} cos (x)

Solution

\frac{cos ( x )}{2 ^{x}}

Solution steps

2^{- x} cos (x)

Apply exponent rule:

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

2^{- x} = \frac{1}{2 ^{x}}

= \frac{1}{2 ^{x}} cos (x)

Apply the fraction rule:

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

= \frac{1 \cdot cos ( x )}{2 ^{x}}

Apply rule:

1 \cdot a = a

1 \cdot cos (x) = cos (x)

= \frac{cos ( x )}{2 ^{x}}

Popular Examples

simplify 1.24\times 10^{-10}simplify

1.24 \times 1 0^{- 10}

simplify (4.49x10^{10})x(1.81x10^{10})simplify

(4.49 x 1 0^{10}) x (1.81 x 1 0^{10})

simplify 145.7*10^{-6}simplify

145.7 \cdot 1 0^{- 6}

simplify 360e^{-0.3(10)}simplify

360 e^{- 0.3 (10)}

simplify-2.43025*10^{-19}*(2.99647)^2 simplify

- 2.43025 \cdot 1 0^{- 19} \cdot (2.99647)^{2}

Frequently Asked Questions (FAQ)

What is 2^{-x}cos(x) ?
The solution to 2^{-x}cos(x) is (cos(x))/(2^x)