62.8k views
2 votes
Find the area of the surface. The surface with parametric equations x = u2, y = uv, z = 1 2 v2, 0 ≤ u ≤ 2, 0 ≤ v ≤ 1.

User Ghaleon
by
6.1k points

2 Answers

6 votes

Answer:

Answer 32/3

Explanation:

User Chrizonline
by
5.9k points
3 votes

Answer:

Area = 32/3

Explanation:

x = u ²

y = uv

z = 12v ²

0 ≤ u ≤ 2

0 ≤ v ≤ 1

Since ru = <2u, v, 0> and rv = <0, u, 24v>, we have

Where ru is the differentiation of x, y, z with respect to u and rv is the differentiation of x, y, z wit respect to v.

we find the cross product of ru and rv

ru × rv = 24v²i - 48uv²j + 2u²k

absolute value of ru × rv = 2u² + 24v²

We can now find the area

∫₀² du ∫₀¹ dv (2u² + 24v²) = ∫₀² du [2u²v + 8v³]₀¹ = 32/3

Detailed description can be found in the attachment

Find the area of the surface. The surface with parametric equations x = u2, y = uv-example-1
User Mitat Koyuncu
by
5.1k points