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Math Help - Need Help!!

  1. #1
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    Need Help!!

    Write an expression for the function, g(x), if it is known that g '(x) = sin(x)/x and g(3) = 7.

    Give your answer using the form below.

    C =
    a =
    A(t) =

    can i get someone to help me with this one...show me what do to...thanks...

    mathlete
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  2. #2
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    Here is one possible solution.
    \begin{array}{l}<br />
 C = 7 \\ <br />
 a = 3 \\ <br />
 A(t) = \frac{{\sin (t)}}{t} \\ <br />
 \end{array}

    Do you understand why?
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  3. #3
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    Quote Originally Posted by Plato View Post
    Here is one possible solution.
    \begin{array}{l}<br />
C = 7 \\ <br />
a = 3 \\ <br />
A(t) = \frac{{\sin (t)}}{t} \\ <br />
\end{array}

    Do you understand why?

    not quite, i understand the A(t), but how do you figure that the other values are just the ones given in the problem?
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  4. #4
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    Quote Originally Posted by mathlete View Post
    how do you figure that the other values are just the ones given in the problem?
    They happen to work!
    Don't they work?
    Lets see, g(3)=7. Do you see why?

    g(x) = \int\limits_a^x {f(t)dt}  + C\quad  \Rightarrow \quad g(a) = C
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