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    silent_storm's Avatar
    silent_storm Posts: 1, Reputation: 1
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    #1

    Nov 1, 2010, 09:29 AM
    Differential Equation Help needed
    a) Solve the given differential equation by Separation of variables.

    sec2xdy+cscydx=0

    b)Solve the following Differential Equation

    (y2+3xy)dx=(4x2+xt)dy, y(1)=1

    c)Determine whether the following Differential Equation is exact. If exact, solve

    (1-2x2-2y)dy/dx=4x3+4xy



    ITS URGENT NEED WITHIN 24 hours
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Nov 1, 2010, 01:10 PM
    #1:





    Separate variables:



    Now, integrate:



    For the other two, I can not read them for certain. Try using ^ (SHIFT 6) if you mean an exponent.

    I am going to hazard a guess and presume that #2 is:

    ?

    #3: ?



    Check if

    If this is true, then it is exact.

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