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Study23 Group Title

Differentiate the function?

  • one year ago
  • one year ago

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  1. Study23 Group Title
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    Not sure how to, I know about f(x+h).... The function is \(\ \Huge y=x^{\frac{-2}{5}} \).

    • one year ago
  2. baldymcgee6 Group Title
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    Do you want to use the definition of a derivative, or differentiating rules?

    • one year ago
  3. soty2013 Group Title
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    |dw:1351143271652:dw|

    • one year ago
  4. Study23 Group Title
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    I don't know, honestly I don't know because we got this assignment after a test without explanation

    • one year ago
  5. baldymcgee6 Group Title
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    Have you heard of the power rule?

    • one year ago
  6. Study23 Group Title
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    No...

    • one year ago
  7. baldymcgee6 Group Title
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    Does this look familiar?|dw:1351143348273:dw|

    • one year ago
  8. Study23 Group Title
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    Yup!

    • one year ago
  9. baldymcgee6 Group Title
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    ok... good!

    • one year ago
  10. baldymcgee6 Group Title
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    can you set it up?

    • one year ago
  11. Study23 Group Title
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    Hmm, just plug (x+h) for x?

    • one year ago
  12. Study23 Group Title
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    Where does the power rule come in?

    • one year ago
  13. baldymcgee6 Group Title
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    Basically.. forget the power rule. you will learn that later. For now you must use this method :D ... But once you learn the power rule, you will be able to differentiate that in 5 seconds.

    • one year ago
  14. baldymcgee6 Group Title
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    |dw:1351143586995:dw|

    • one year ago
  15. Study23 Group Title
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    Okay, because the text explains that in this chapter but I don't understand it

    • one year ago
  16. baldymcgee6 Group Title
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    oh.. well then maybe you want to learn it?? because this method will take ALOT longer and is ALOT more work.. :0 Power rule is pretty simple to grasp... want me to explain?

    • one year ago
  17. Study23 Group Title
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    Yes please!!

    • one year ago
  18. baldymcgee6 Group Title
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    ok :)

    • one year ago
  19. baldymcgee6 Group Title
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    |dw:1351143786848:dw|

    • one year ago
  20. Study23 Group Title
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    Is the d/dx the same as f'(x)?

    • one year ago
  21. baldymcgee6 Group Title
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    very good question, there is a little bit of history to this... basically two guys were inventing calculus near the same time, so lots of different notations came about. These all mean the same thing: |dw:1351144085607:dw|

    • one year ago
  22. Study23 Group Title
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    Oh okay! It just looks more complicated haha

    • one year ago
  23. baldymcgee6 Group Title
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    Back to our question... |dw:1351144249816:dw|

    • one year ago
  24. baldymcgee6 Group Title
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    It does look more intimidating, but you will get used to it :)

    • one year ago
  25. Study23 Group Title
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    So basically you have to memorize these rules?

    • one year ago
  26. baldymcgee6 Group Title
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    haha, you will have to yes... But it will become second nature. For this rule, just drop the exponent and minus one.

    • one year ago
  27. Study23 Group Title
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    You explained it much better than the 2 paragraphs of math jargon my text has! :D

    • one year ago
  28. baldymcgee6 Group Title
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    |dw:1351144716613:dw|

    • one year ago
  29. Study23 Group Title
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    I got -7/5 not -3/5...

    • one year ago
  30. baldymcgee6 Group Title
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    Sorry.. i'm tired.. and you're right. :)

    • one year ago
  31. baldymcgee6 Group Title
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    |dw:1351145072249:dw|

    • one year ago
  32. Study23 Group Title
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    Okay... Thanks for all your help @baldymcgee6 ! I appreciate it greatly!! :D

    • one year ago
  33. Study23 Group Title
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    After all, not everyone takes the time to explain the concept!

    • one year ago
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