Chapter 11: Q. 6 (page 900)
Chapter 11: Q. 6 (page 900)
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Get started for freeUnder what conditions does a differentiable vector-valued functionr(t) not have a unit tangent vector at a point in the domain of r(t)?
Let be a vector-valued function, where a < b are real numbers and the functions x(t), y(t), and z(t)are continuous. Explain why the graph of r is contained in some sphere centered at the origin.
Prove that if a particle moves along a curve at a constant speed, then the velocity and acceleration vectors are orthogonal.
Find parametric equations for each of the vector-valued functions in Exercises 26–34, and sketch the graphs of the functions, indicating the direction for increasing values of t.
Let y = f(x). State the definition for the continuity of the function f at a point c in the domain of f .
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