Need help with using Leibniz's Rule

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The discussion revolves around solving the derivative of an integral using Leibniz's Rule, specifically for the function g(x) = d/dx (∫x21 et/t dt). The correct answer for g'(2) is e^4, but the original poster is obtaining 7e^4/2, indicating a possible mistake in their calculations. Participants agree that the question explicitly asks for g'(2), and there is speculation about a potential transcription error in the problem or solution. The consensus is to verify the computations further, as mistakes can happen on both sides. The conversation highlights the importance of careful calculation in applying Leibniz's Rule.
Astro
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I tried solving this question but I'm not getting the correct answer and I don't know what I'm doing wrong. Can anyone tell me what I did wrong? Thank you.

The math question is:
Let g(x) = d/dx (∫x21 et/t dt), then g'(2) is ____?

The correct answer is e4 but I'm getting 7e4/2. (See my solution attempt in the attached PDF file.)
 

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I get the same result as you. Maybe we made the same mistake, or maybe the question was to find ##g(2)##.
 
Samy_A said:
I get the same result as you. Maybe we made the same mistake, or maybe the question was to find ##g(2)##.
Thank you for your reply.
The sample question specifically asks for g'(2) but what you say seems to make sense.
(Although, that would be a he** of a mistake on the part of the school since it's the one of last year's exam questions. :/ )
 
Astro said:
Thank you for your reply.
The sample question specifically asks for g'(2) but what you say seems to make sense.
(Although, that would be a he** of a mistake on the part of the school since it's the one of last year's exam questions. :/ )
Well, everybody can make mistakes. Maybe we did, maybe the school did. Let's wait for others to check the computation.
 
If you let g(x) be the integral only. Then the derivative of g(x) at x=2 is e^4. Probably transcription error somewhere.
 

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