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You are not logged in. #1 20120927 12:56:28
Derivative of a definite integralHello! I was just working on a review assignment and in the 10% or so left, I've come across a question for which I have no idea on how to begin. #2 20120927 17:21:27
Re: Derivative of a definite integralhi Anakin, In other words you can substitute into the integral process any alternative variable. So I cannot see why you should just 'cancel out' the integration with the differentiation and just sub in the limits. This worked OK with a simple function, but, I confess, I'm not 100% sure on this. As the day moves ahead, hopefully we'll get a second opinion on this. Bob You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #3 20120927 18:20:34
Re: Derivative of a definite integralHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #4 20120928 07:31:36
Re: Derivative of a definite integralBob: If one was to change the variable in the function, wouldn't the intervals on the integral also change? #5 20120928 07:33:35
Re: Derivative of a definite integralHi Anakin; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #6 20120928 14:07:20
Re: Derivative of a definite integralHi, #7 20120928 16:22:58
Re: Derivative of a definite integralHi Anakin; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #9 20120928 17:22:28
Re: Derivative of a definite integralHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #10 20120928 17:29:37
Re: Derivative of a definite integralThat's exactly what I've got above as well. I'm not sure whether you're simply checking if my work was free of errors or whether that is the solution to the question. Could you clarify? #11 20120928 17:34:03
Re: Derivative of a definite integralWhenever I have seen the derivative operator in front of an integral like that they have always meant In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #13 20120928 19:29:25
Re: Derivative of a definite integralHi Anakin; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 