What is the derivative of cos(x/4) ?

The derivative of cos(x/4) is -sin(x/4) 1/4

What is the first derivative of cos(x/4) ?

The first derivative of cos(x/4) is -sin(x/4) 1/4

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\frac{d}{d x} (cos (\frac{x}{4}))

- sin (\frac{x}{4}) \frac{1}{4}

Solution steps

\frac{d}{d x} (cos (\frac{x}{4}))

Apply the chain rule:

- sin (\frac{x}{4}) \frac{d}{d x} (\frac{x}{4})

= - sin (\frac{x}{4}) \frac{d}{d x} (\frac{x}{4})

\frac{d}{d x} (\frac{x}{4}) = \frac{1}{4}

= - sin (\frac{x}{4}) \frac{1}{4}

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\int y ln (y) - \frac{1}{9 - y ^{2}} d y

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What is the derivative of cos(x/4) ?
The derivative of cos(x/4) is -sin(x/4) 1/4
What is the first derivative of cos(x/4) ?
The first derivative of cos(x/4) is -sin(x/4) 1/4