Derivatives
Trigonometric Derivatives
A guide to the derivatives of sine, cosine, tangent, and other trig functions.
Derivatives of trigonometric functions are essential for solving problems involving periodic motion or geometry. Basic formulas include d/dx(sin x) = cos x and d/dx(cos x) = -sin x. For complex functions, these are often combined with the Chain Rule. The full table, including sec, csc, cot, and the inverse functions, is on the derivatives of trigonometric functions page.