Applications of derivatives
Practice problems on related rates, optimization, curve sketching and linear approximation.
Related rates practice problems
x^2 + y^2 = z^2 \;\Rightarrow\; 2x\frac{dx}{dt} + 2y\frac{dy}{dt} = 2z\frac{dz}{dt}
10 related rates practice problems with answers and full solutions: balloons, ladders, cones, shadows, cars and angles, each with a clear setup.
Optimization practice problems
f'(x) = 0 \;\text{ or undefined} \;\Rightarrow\; \text{test critical points and endpoints}
10 calculus optimization practice problems with answers and full solutions: fences, boxes, cans, closest points, revenue and the fastest route.
Curve sketching practice problems
f'(x) > 0 \Rightarrow \text{increasing}, \qquad f''(x) > 0 \Rightarrow \text{concave up}
12 curve sketching practice problems with answers and full solutions: critical points, increasing and decreasing, extrema, concavity and asymptotes.
Linear approximation practice problems
L(x) = f(a) + f'(a)(x - a)
12 linear approximation practice problems with answers and full solutions: linearization, estimating roots and logs, differentials and error.
Mean Value Theorem practice problems
f'(c) = \frac{f(b) - f(a)}{b - a}
12 Mean Value Theorem practice problems with answers and full solutions: finding c, Rolle's theorem, checking hypotheses, bounds and counting roots.
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