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Thread: Please help find composition of f and g means fog

  1. April 14th 2009, 11:21 PM #1
    tariq_ews
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    Exclamation Please help find composition of f and g means fog

    Hello Respected Sir,

    i have a problem plz help.
    <br /> For f(x)= 3x4-2x2<br /> g(x) = 2/(x)1/2<br />

    find the composition of f and g.

    i have just solve here


    <br /> gof = ?<br /> gof(x) = g(f(x))= 2/ (f(x))<br /> gof(x)= 2/(3x4-2x2)1/2<br /> <br />

    but next
    Plz help

    the second question is that

    find the 15th term of the following sequence

    1/2,1/4,1/8,...
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  2. April 15th 2009, 01:15 AM #2
    mr fantastic
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    Quote Originally Posted by tariq_ews View Post
    [snip]
    the second question is that

    find the 15th term of the following sequence

    1/2,1/4,1/8,...
    Answered here: http://www.mathhelpforum.com/math-he...-question.html
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  3. April 15th 2009, 03:29 AM #3
    tariq_ews
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    Smile Thanks

    Respected Sir,

    Thanks for giving me the procedure thanks again

    Truly Regards,

    Tariq
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  4. April 15th 2009, 03:36 AM #4
    tariq_ews
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    gof

    Hello Respected Sir,

    i have a problem plz help.
    i have a question


    [HTML]
    g(x) = 2/sqrt(x)
    [/HTML]
    find the composition of f and g. i.e. gof?

    i have just solve here

    <br /> gof=?<br /> Putting values of f(x) <br /> gof(x) = g(f(x))<br /> g(f(x)) = 2/sqrt (3x4-2x2)<br />
    but next i just confuse what can i do next

    Plz help


    Thanks in advance

    Truly Regards,
    Tariq
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