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Student Support Forum: 'Derivative of Sums' topicStudent Support Forum > General > "Derivative of Sums"

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10/12/10 02:20am


I have a problem with the derivative of a sum. More specifically, it's about the function in the attachment.
The Outcome is close to the right formula but not the same.
Can anyone see my error and tell me how to do it right?

Thank you

Attachment: problem.nb, URL: ,
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