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11th Edition

Ron Larson + 1 other

Publisher: Cengage Learning

ISBN: 9781337275347

Chapter 12.2, Problem 67E

Textbook Problem

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Proof **In Exercises 61-68, prove the property. In each case, assume r, u, and v are differentiable vector-valued functions of t in space, w is a differentiable real-valued function of t, and c is a scalar.**

To determine

**To prove:** The expression

**Given:**

Assume *r*, *u*, and *v* are differentiable vector-valued functions of *t* in space, *w* is a differentiable real-valued function of *t* and *c* is a scalar.

**Formula used:**

The product rule is:

**Proof:**

Consider the function:

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In...Ch. 12.2 - ProofIn Exercises 6168, prove the property. In...Ch. 12.2 - ProofIn Exercises 6168, prove the property. In...Ch. 12.2 - ProofIn Exercises 6168, prove the property. In...Ch. 12.2 - Proof In Exercises 61-68, prove the property. In...Ch. 12.2 - ProofIn Exercises 6168, prove the property. In...Ch. 12.2 - Proof In Exercises 61-68, prove the property. In...Ch. 12.2 - ProofIn Exercises 6168, prove the property. In...Ch. 12.2 - Particle MotionA particle moves in the xy-plane...Ch. 12.2 - Particle MotionA particle moves in the yz-plane...Ch. 12.2 - Perpendicular Vectors Consider the vector-valued...Ch. 12.2 - HOW DO YOU SEE IT? The graph shows a vector-valued...Ch. 12.2 - True or False? In Exercises 73-76, determine...Ch. 12.2 - True or False? In Exercises 73-76, determine...Ch. 12.2 - True or False? In Exercises 73-76, determine...Ch. 12.2 - True or False? In Exercises 73-76, determine...Ch. 12.3 - CONCEPT CHECK Velocity Vector An object motet...Ch. 12.3 - Acceleration Vector? 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What...Ch. 12.5 - Curvature Given a twice-differentiable function...Ch. 12.5 - Investigation Consider the function f(x)=x4x2. (a)...Ch. 12.5 - Motion of a Particle A particle moves along the...Ch. 12.5 - Investigation Find all a and b such that the two...Ch. 12.5 - HOW DO YOU SEE IT? Using the graph of the ellipse,...Ch. 12.5 - Sphere and Paraboloid A sphere of radius 4 is...Ch. 12.5 - Speed The smaller the curvature of a bend in a...Ch. 12.5 - Center of Curvature Let C be a curve given by...Ch. 12.5 - Center of Curvature Use the result of Exercise 67...Ch. 12.5 - Curvature A curve C is given by the polar equation...Ch. 12.5 - Curvature Use the result of Exercise 69 to find...Ch. 12.5 - Curvature Given the polar curve r=ea,a0, use the...Ch. 12.5 - Curvature at the Pole Show that the formula for...Ch. 12.5 - Curvature at the PoleIn Exercises 73 and 74, use...Ch. 12.5 - Curvature at the Pole In Exercises 73 and 74, use...Ch. 12.5 - Proof For a smooth curve given by the parametric...Ch. 12.5 - Horizontal Asymptotes Use the result of Exercise...Ch. 12.5 - Curvature of a Cycloid Use the result of Exercise...Ch. 12.5 - Tangential and Normal Components of Acceleration...Ch. 12.5 - Frictional ForceA 5500-pound vehicle is driven at...Ch. 12.5 - Frictional ForceA 6400-pound vehicle is driven at...Ch. 12.5 - CurvatureVerify that the curvature at any point...Ch. 12.5 - Formulas for Curvature Use the definition of...Ch. 12.5 - True or False? In Exercises 83-86, determine...Ch. 12.5 - True or False? In Exercises 85-86, determine...Ch. 12.5 - True or False? In Exercises 85-86, determine...Ch. 12.5 - True or False? 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