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You are not logged in. #1 20130822 20:09:10
Differentiation problemConsider the function f(x)= 2x^4  512x²  7x  28. The function is plotted below. The tangents to the curve at the points A and C are shown. Find the value of the tangent at the point B if possible. Last edited by AlbertMThomas (20130822 20:09:25) #2 20130822 20:27:37
Re: Differentiation problemHi;
Where are they shown? If you want a numeric answer, I will need more. 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. #3 20130822 20:32:49
Re: Differentiation problemhi, You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #4 20130822 21:37:03
Re: Differentiation problemHi; see the red dot. Notice the change in the second derivative at the inflection point. 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. #5 20130822 22:11:01
Re: Differentiation problemA QUESTION: CAN A GRAPH contain MORE than one INFLECTION point? and WHY? Last edited by AlbertMThomas (20130822 22:19:49) #6 20130822 22:24:30
Re: Differentiation problemI think that is because that is an undulation point, therefore it is not an inflection point. 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. #7 20130822 23:08:23
Re: Differentiation problemCan we say it is impossible to find the slope, and why?? #8 20130823 00:41:49
Re: Differentiation problemHi; 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 20130823 01:29:56
Re: Differentiation problemThere are points of inflexion at x = +/ 6.53... You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei 