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4 answers

By being given boundary conditions.
eg may be told that y = 20 when x = 2.

Therefore if a solution has
y = 2x² - 2x + C
20 = 8 - 4 + C
20 = 4 + C
C = 16 (constant of integration has been found)

2007-02-28 03:45:38 · answer #1 · answered by Como 7 · 1 0

It can't unless you are given some info that helps you calculate.

Ex.: Find f(x) if f'(x)=2x + 1.
Answer: f(x) = x² + x + C. You don't know a thing about C.

Ex.: Find f(x) if f'(x)=2x + 1 and f(1) = 4.
Answer: f(x) = x² + x + 2. You find this out by plugging the given value f(1)=4 in the equation f(x) = x² + x + C.

2007-02-28 11:34:51 · answer #2 · answered by Anonymous · 0 1

The constant C denotes that the solution is a family of functions having the same derivative and differ in a constant.

2007-02-28 11:44:37 · answer #3 · answered by Amit Y 5 · 0 1

if we given a pt on the curve then we can substitute the values of 'x' and 'y' to find 'c'

2007-02-28 11:35:51 · answer #4 · answered by Maths Rocks 4 · 0 1

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