asked 159k views
0 votes
Find the volume of the solid whose base is the region in the first quadrant bounded by

y=x^6,y=1 , and the y-axis and whose cross-sections perpendicular to the
axis are semicircles.

asked
User Otavio
by
7.5k points

1 Answer

2 votes

Answer:

Explanation:

To find the volume of the solid, we need to integrate the areas of the cross-sections perpendicular to the x-axis. In this case, the cross-sections are semicircles.

Let's set up the integral to find the volume. The base of the solid is the region in the first quadrant bounded by y = x^6, y = 1, and the y-axis. We will integrate along the x-axis from x = 0 to x = 1.

The area of each semicircle is given by (1/2) * π * r^2, where r is the radius of the semicircle.

Now, let's find the radius of each semicircle as a function of x. Since the base is bounded by y = x^6 and y = 1, the radius r is simply the y-coordinate at each x, which is r = x^6.

The volume of the solid is then given by the integral of the areas of the semicircles:

Volume = ∫[0 to 1] (1/2) * π * (x^6)^2 dx

Volume = ∫[0 to 1] (1/2) * π * x^12 dx

Now, integrate with respect to x:

Volume = (1/2) * π * ∫[0 to 1] x^12 dx

Volume = (1/2) * π * [x^13 / 13] evaluated from 0 to 1

Volume = (1/2) * π * [(1^13 / 13) - (0^13 / 13)]

Volume = (1/2) * π * (1/13)

Volume ≈ 0.03832 cubic units (rounded to five decimal places)

So, the volume of the solid is approximately 0.03832 cubic units.

answered
User Totte Karlsson
by
8.4k points
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.