Find the value of at .

MATHEMATICS · Subjective · AP · Calculus AB · Differentiation: Definition and Fundamental Properties · Differentiation: Definition and Fundamental Properties

Problem

Find the value of

\dfrac{d}{dx}\bigl(3\sin x - 4\cos x\bigr)

x = \dfrac{\pi}{4}

Related theory

Trigonometric Ratios
Trigonometric Functions
Differentiation Rules
Limits of transcendental functions
Limits of trigonometric functions
Limits and Derivatives

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