MAT1575 Calculus II Fall 2019

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  • HELP section 6.1 Textbook
  • September 22, 2019 at 6:20 pm #55678

    Teamdavid
    Participant

    Hello professor, can you please explain Problem 7 from section 6.1 in the textbook.

    September 22, 2019 at 6:26 pm #55679

    Teamdavid
    Participant

    not Problem 7 but Problem 8.

    September 22, 2019 at 8:37 pm #55682

    Victor Sirelson
    Participant

    It looks like this discussion format doesn’t allow mathematical symbols. I will investigate this.

    Problem: int ( 1/sqrt(2x+3) dx
    Why not substitute u = 2x+3? so du = 2dx

    Re-write: int ( 1/2 du/sqrt(u) ) = 1/2 int (u^(-1/2) du = 1/2 ( u^(1/2) / (1/2) = u^(1/2) = (2x+3)^(1/2) +C

    September 22, 2019 at 8:38 pm #55683

    Victor Sirelson
    Participant

    I want to try the Latex code:
    [latexpage]
    $ \int 1/\sqrt(2x+3) dx $

    September 22, 2019 at 8:41 pm #55684

    Victor Sirelson
    Participant

    Try going to the Course Site. Perhaps we can use better math code.

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