Conceptual integral shift/translation.

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SUMMARY

The discussion centers on evaluating the integral of g(2-u)du over the interval [0,2], given that the integral of g(u)du from 0 to 2 is 12. The participant initially attempted to switch the limits of integration, resulting in an incorrect value of -8. The correct approach involves substituting v = 2 - u, which requires rewriting both du and the limits of integration to accurately compute the integral.

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CandyApples
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Homework Statement


Given that the integral of g(u)du on the interval [0.2] is 12, what is g(2-u)du on the interval [0,2]


Homework Equations


f on [a,b] is F(b) - F(a).


The Attempt at a Solution


Switching from positive to negative t flips the limits to [2,0]. This would yield -12 instead of 12. F(2) on 0,2 would just be 4. The answer of -8, however is not correct. Have I violated order of operations or am I missing a concept?
 
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Welcome to PF!

Hi CandyApples! Welcome to PF! :smile:

(have an integral: ∫ :wink:)
CandyApples said:

Homework Statement


Given that the integral of g(u)du on the interval [0.2] is 12, what is g(2-u)du on the interval [0,2]

I'm not sure what you've done. :confused:

Put v = 2 - u, and rewrite du and the limits …

what do you get? :smile:
 

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