Consider the functional 1 S[y] = f'da dx √1+x+y¹2, y(0)=A>0, y(1) = B > A. Show that the function y(x), defined by the relation y'(x) = c√1+x+y'(x)², where c is a constant, makes S[y] stationary. By expressing y'(x) in terms of x, solve this equation to show that y(x) = A + (B − A) (23/2 - 1) ·((1+ + x)³/² − 1).

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter4: Calculating The Derivative
Section4.CR: Chapter 4 Review
Problem 5CR: Determine whether each of the following statements is true or false, and explain why. The chain rule...
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Consider the functional
1
Sl[y] = f
Show that the function y(x), defined by the relation
y'(x) = c√/1 + x + y'(x)²,
where c is a constant, makes S[y] stationary. By expressing y'(x) in terms of x,
solve this equation to show that
dx √1+x+y¹2, y(0)=A>0, y(1) = B > A.
y(x) = A +
(B - A)
(23/2 - 1)
((1 + + x)³/2² − 1).
Transcribed Image Text:Consider the functional 1 Sl[y] = f Show that the function y(x), defined by the relation y'(x) = c√/1 + x + y'(x)², where c is a constant, makes S[y] stationary. By expressing y'(x) in terms of x, solve this equation to show that dx √1+x+y¹2, y(0)=A>0, y(1) = B > A. y(x) = A + (B - A) (23/2 - 1) ((1 + + x)³/2² − 1).
Consider the functional
1
Sl[y] = f
Show that the function y(x), defined by the relation
y'(x) = c√/1 + x + y'(x)²,
where c is a constant, makes S[y] stationary. By expressing y'(x) in terms of x,
solve this equation to show that
dx √1+x+y¹2, y(0)=A>0, y(1) = B > A.
y(x) = A +
(B - A)
(23/2 - 1)
((1 + + x)³/2² − 1).
Transcribed Image Text:Consider the functional 1 Sl[y] = f Show that the function y(x), defined by the relation y'(x) = c√/1 + x + y'(x)², where c is a constant, makes S[y] stationary. By expressing y'(x) in terms of x, solve this equation to show that dx √1+x+y¹2, y(0)=A>0, y(1) = B > A. y(x) = A + (B - A) (23/2 - 1) ((1 + + x)³/2² − 1).
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