Chapter 11: Q. 19 (page 872)
Chapter 11: Q. 19 (page 872)
All the tools & learning materials you need for study success - in one app.
Get started for freeAs we saw in Example 1, the graph of the vector-valued function is a circular helix that spirals counterclockwise around the z-axis and climbs as t increases. Find another parametrization for this helix so that the motion is downwards.
Find and graph the vector function determined by the differential equation
. (HINT: Start by solving the initial-value problem .)
Let be a vector-valued function whose graph is a curve C, and let be the acceleration vector. Prove that if is always zero, then C is a straight line.
Find the unit tangent vector and the principal unit normal vector at the specified value of t.
Let and be differentiable vector functions with three components each. Prove that
(This is Theorem 11.11 (c).)What do you think about this solution?
We value your feedback to improve our textbook solutions.