1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Another problem

  1. Apr 25, 2006 #1
    Find an equation of the curve that satisfies

    dy/dx = 88yx^(10)
    and whose y intercept is 4

    dy/y = 88x^(10)dx

    integral both sides

    ln(y) = 8x^(11)
    y = e^(8x^(11))+C

    put x = 0 into the equation
    I got C = 3.

    Why am I wrong?
  2. jcsd
  3. Apr 25, 2006 #2


    User Avatar
    Science Advisor
    Homework Helper

    Because you're supposed to add the constant of integration C right after you integrate, and THEN exponentiate both sides.
  4. Apr 25, 2006 #3
    THanx dude!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook