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kenny97701

  • 2 years ago

for f(x)^2 compute and simplify the difference quotient f(x+h)-f(x)/h. I ended up with f(x)=0. is this correct?

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  1. sasogeek
    • 2 years ago
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    how did u arrive at f(x)=0 ?

  2. kenny97701
    • 2 years ago
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    basically by canceling out the h and 5x^2

  3. Dockworker
    • 2 years ago
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    what is f(x)

  4. sasogeek
    • 2 years ago
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    did you mean f(x)=x^2 ? cos i don't see how you can start working that out if you haven't defined f(x) in the first place :/

  5. kenny97701
    • 2 years ago
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    f(x)=5x^2

  6. kenny97701
    • 2 years ago
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    sorry

  7. Dockworker
    • 2 years ago
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    you have to substitute (x+h) for x in f(x+h), you're not going to end up with 0

  8. sasogeek
    • 2 years ago
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    ok so you'll do what Dockworker said and you'll end up with this. \[\huge \frac{5(x+h)^2-5x^2}{h} \]\[\huge \text{simplify that and I believe that'd be it :) } \]

  9. kenny97701
    • 2 years ago
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    thats what i thought. thanks

  10. sasogeek
    • 2 years ago
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    anytime :)

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