Let R be the region between the curves y = e -cx and y = -e -cx
Question:
Let R be the region between the curves y = e-cx and y = -e-cx on the interval (a, ∞), where a ≥ 0 and c > 0. The center of mass of R is located at where (The profile of the Eiffel Tower is modeled by the two exponential curves; see the Guided Project The exponential Eiffel Tower.)
a. For a = 0 and c = 2, sketch the curves that define R and find the center of mass of R. Indicate the location of the center of mass.
b. With a = 0 and c = 2, find equations of the lines tangent to the curves at the points corresponding to x = 0.
c. Show that the tangent lines intersect at the center of mass.
d. Show that this same property holds for any a ≥ 0 and any c > 0; that is, the tangent lines to the curves y = ±e-cx at x = a intersect at the center of mass of R.
Step by Step Answer:
Calculus Early Transcendentals
ISBN: 978-0321947345
2nd edition
Authors: William L. Briggs, Lyle Cochran, Bernard Gillett