Recent content by jhodzzz

  1. J

    Relative Extrema: Find a,b,c,d for f(x)

    >>> after getting the two equations: 3a + 2b + c and 12a + 4b + c, what will I do... I still could not find a way to get the values of a, b, c, and d... after eliminating c, I only get 9a + 2b giving two variables unknown still.. help.. :(
  2. J

    First Derivative Test for f(x) = (1-x)^2(1+x)^3: Extrema, Intervals, and Values

    you mean this differentiation: f'(x)=((1-x)2)(3(1+x)2)+((1+x)3)(2(1-x)) I arrived at that considering f(x)=g(x)*h(x) such that g(x)=(1-x)2 and h(x)=(1+x)3 so applying the multiplication rule, i should have that answer. Do I still need to simplify it further?? will the factors vary by then?
  3. J

    Relative Extrema: Find a,b,c,d for f(x)

    Homework Statement I have to find a, b, c, and d such that the function defined by : f(x) = ax3+bx2+cx+d will have a relative extrema at points (1,2) and (2,3). The Attempt at a Solution From the given critical points, I am able to know that when x=1 or x=2, f'(x)=3ax2+2bx+c should be...
  4. J

    First Derivative Test for f(x) = (1-x)^2(1+x)^3: Extrema, Intervals, and Values

    Homework Statement I have to get the following: - relative extrema of f - values of f at which the relative extrema occurs - intervals on which f is increasing - intervals on which f is decreasing when f(x) = (1-x)2 (1+x)3 Homework Equations Now when get to have the...
  5. J

    Derivative of f(x)=(1-x)2(1+x)3?

    alright2x...got it...now I'm enlightened..thanks a lot for the help.. :)
  6. J

    Derivative of f(x)=(1-x)2(1+x)3?

    you see, that's the reason why I posted this thread. I'm somehow confused on what to use. Will I use the power rule or the product rule?? if I'm going to use the power rule, i'll arrive on an answer like this: 2(1-x)*3(1+x)2 is that correct??
  7. J

    Derivative of f(x)=(1-x)2(1+x)3?

    what is the first derivative of f(x)=(1-x)2(1+x)3?
  8. J

    Finding Velocity in Work Problem

    i'm passing this one by tomorrow already and i don't have the luxury of time to research those theorems here and now...so I'm asking a favor...i'll try to research on this one afterwards...promise...it's just that i have to solve this immediately.. please...
  9. J

    Finding Velocity in Work Problem

    ahm, I'm really weak at formulas and theorems...could u give me the formulas that i need for the problem? please...
  10. J

    Finding Velocity in Work Problem

    yeah2x..that's it... am i missing some given for you to solve the problem?? how am i going to solve it??
  11. J

    Finding Velocity in Work Problem

    sorry for the inconvinience... actually this project was given to us verbally... i only saw the illustration while our teacher keeps explaining about the problem... ok, i'll try to explain it again... an electron is attracted at the positive end of the capacitor (simply because it is...
  12. J

    Finding Velocity in Work Problem

    i'm sorry for the inconvinience...i'm a newbie here at forums, don't know how to directly show a picture here on my reply yet... don't know how to post mathematical expressions here too.. :( i'll be learning it.. again I'm sorry..please bare with me...
  13. J

    Finding Velocity in Work Problem

    please open my attached file here...it is a picture... actually this is my problem... based on the illustration on my attachment, an electron is attracted on the positive end of the capacitor. when applied by a downward Force F, it moves and reaches at rest at the other end of the...
  14. J

    Finding Velocity in Work Problem

    rock, considering the fact that you're the one who gave the formula, could you help me please?? i sent a message on your account too... please..
  15. J

    Finding Velocity in Work Problem

    i tried solving the problem considering the formula given but i didn't get the correct answer. could someone give me the detailed solution on solving C and D?? please?? it would really be of great help to me as for my assignment. I'm having the same problem so I'm looking for the solutions on...
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