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husbishag

  • 2 years ago

We are given the derivative of f: f′(x) = cos(x) + 10/x. Compute f(2) − f(1) Can someone please help??

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  1. mark_o.
    • 2 years ago
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    compute the integral of f′(x) = cos(x) + 10/x. after getting that f(x) do f(2) and f(1) then find f(2) − f(1)

  2. husbishag
    • 2 years ago
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    thanks Mark. It takes me a while to figure things out, so give me a few moments and I'll write if I have further questions.

  3. mark_o.
    • 2 years ago
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    ok, YW

  4. mark_o.
    • 2 years ago
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    have fun and enjoy :D

  5. husbishag
    • 2 years ago
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    @mark_o. so, the integral of f'(x) = cos(x) + 10/x is sin(x) = 10 ln(x) Correct? So, for f(2) we would write this as sin(2) + 10 ln(2) and f(1) = sin(1) = 10 ln(1)?? How am I doing so far??

  6. husbishag
    • 2 years ago
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    So, next which is a ridiculous question, how do I calculate f(2) - f(1)?

  7. mark_o.
    • 2 years ago
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    hmm wait your calculator must be in radan mode, is it?

  8. husbishag
    • 2 years ago
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    heh. yes.

  9. husbishag
    • 2 years ago
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    I think I'm good now. THANK YOU!

  10. mark_o.
    • 2 years ago
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    you got it :D

  11. mark_o.
    • 2 years ago
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    YW have fun now and enjoy :D

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