Calculus
Basic

Derivative of Cosine

The derivative of cosine is negative sine.

Formula

ddxcos⁡x=−sin⁡x\frac{d}{dx}\cos x = -\sin x

Variables

xAngle

Example

Slope of cos at 0 is 0

Did You Know?

Differentiating cosine gives negative sine, so a mass on a spring keeps trading position for velocity forever.

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