Let a < b and let f(x) be a continuously differentiable function on the interval [a, b] with f(x) > 0 for all x = [a, b]. Let A > 0, B > 0 be constants. S[y] = da [* dx f(x)}√/1+ y^², _y(a) = A, y(b) = B, a is given by y(x) = rx [² d A+B B-A= B dw where is a constant satisfying b 35° a 1 √f(w)² - 3² dw 1 √f (w)² — B²*

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 93E
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Let a < b and let f(x) be a continuously differentiable function on the
interval [a, b] with f(x) > 0 for all x = [a, b].
Let A > 0, B > 0 be constants.
S[y] =
is given by
y(x)
=
[* dx ƒ(x)√1+y¹², _y(a) = A₁ y(b) = B,
A,
a
A+B
1² d
dw
1
√f(w)²- ß²
where is a constant satisfying
b
B-A= B 3 [º
a
dw
1
√f (w)² - 82
the stationary path
gives a weak local minimum of the functional S[y].
Using the Jacobi equation,
Transcribed Image Text:Let a < b and let f(x) be a continuously differentiable function on the interval [a, b] with f(x) > 0 for all x = [a, b]. Let A > 0, B > 0 be constants. S[y] = is given by y(x) = [* dx ƒ(x)√1+y¹², _y(a) = A₁ y(b) = B, A, a A+B 1² d dw 1 √f(w)²- ß² where is a constant satisfying b B-A= B 3 [º a dw 1 √f (w)² - 82 the stationary path gives a weak local minimum of the functional S[y]. Using the Jacobi equation,
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