Results 1 to 2 of 2

Math Help - Please help on Cal 1 questions

  1. #1
    Junior Member
    Joined
    Dec 2007
    Posts
    32

    Please help on Cal 1 questions

    Find the derivative of y with respect to x, t, or θ, as appropriate.

    y = ln (4θe-θ)

    a. eθ
    b. - 1
    c.
    d. ln (4e-θ(1-θ))


    sec2 4x dx







    a. 10(e3 - e)
    b. 20
    c. 10
    d. -10




    a. ln 2
    b. -2
    c. ln
    d. 0


    Find the derivative of y with respect to x.

    y = sec-1

    a.
    b.
    c.
    d.

    ind the derivative.



    a.
    b.
    c.
    d.



    a. -2 + C
    b. ex sin-1 (ex) + C
    c. sin-1 (ex) + C

    29.

    (Points: 4) Solve the logarithmic equation. Be sure to reject any value of x that produces the logarithm of a negative number or the logarithm of 0.

    log4(x + 3) + log4(x - 3) = 2

    a. {-5}
    b. {6}
    c. {5}
    d. {5, -5}
    cant seem to get the final solutions please help thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Eater of Worlds
    galactus's Avatar
    Joined
    Jul 2006
    From
    Chaneysville, PA
    Posts
    3,001
    Thanks
    1
    log4(x + 3) + log4(x - 3) = 2

    a. {-5}
    b. {6}
    c. {5}
    d. {5, -5}
    cant seem to get the final solutions please help thanks
    The bases are the same, so you can write

    log_{4}((x+3)(x-3))=2

    (x+3)(x-3)=16

    Solve for x.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. More log questions
    Posted in the Algebra Forum
    Replies: 1
    Last Post: March 31st 2010, 04:58 PM
  2. Please someone help me with just 2 questions?
    Posted in the Algebra Forum
    Replies: 3
    Last Post: May 4th 2009, 04:55 AM
  3. Some Questions !
    Posted in the Geometry Forum
    Replies: 1
    Last Post: May 3rd 2009, 03:09 AM
  4. Replies: 4
    Last Post: July 19th 2008, 07:18 PM
  5. Replies: 3
    Last Post: August 1st 2005, 01:53 AM

Search Tags


/mathhelpforum @mathhelpforum