Step-by-step solution file
Section 9.1 38. Find all points of intersection of the two
Can someone please help me with the attached Cal 2 math problems. Need help on those
38. Find all points of intersection of the two curves.
y t 1
x 2 s
y 1 s
10. Identify all points at which the curve has (a) a horizontal tangent and (b) a vertical
x cos 2t
y sin 7t
16. Given the parametric equations for the position of an object, find the object?s velocity
and speed at the given times and describe its motion.
x 2sin 2t
y 3cos 2t
WA 5, p. 1
(a) t = 0?(b)
10. (a) Show that the curve starts at the origin at t = 0 and reaches the point (?, 2) at t = 1.
(b) Use the time formula (3.2) to determine how long it would take a skier to take the
given path. (c) Find the slope at the origin and the arc length for the curve.
y 24 t
14. Compute the surface area of the surface obtained by revolving the given curve about
the indicated axis.
x t 2 1
y t 3 4t
WA 5, p. 2
(a) about the x-axis
(b) about x = 3
This question was answered on: Feb 21, 2020
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