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AravindG Group Title

find maximum and minimum values for the function g(x)=x^3-3x

  • 2 years ago
  • 2 years ago

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  1. AravindG Group Title
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    @hartnn

    • 2 years ago
  2. hartnn Group Title
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    what u got as first derivative ?

    • 2 years ago
  3. AravindG Group Title
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    3x^2-3=0 x^2=1 x=1,-1

    • 2 years ago
  4. AravindG Group Title
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    should i take second derivative?

    • 2 years ago
  5. hartnn Group Title
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    correct. here u can just put the values in g(x) and by inspection u can tell which is max

    • 2 years ago
  6. hartnn Group Title
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    mathematically, u should take 2nd derivative...

    • 2 years ago
  7. AravindG Group Title
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    max at x=-1 and minimum at x=1

    • 2 years ago
  8. AravindG Group Title
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    bt then why we took second derivative in last qn?

    • 2 years ago
  9. hartnn Group Title
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    because we can't find the max or min just by putting the points and inspection, can we ?

    • 2 years ago
  10. AravindG Group Title
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    i see is my final answers ryt?

    • 2 years ago
  11. AravindG Group Title
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    ....

    • 2 years ago
  12. AravindG Group Title
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    u dr??

    • 2 years ago
  13. hartnn Group Title
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    sorry, got disconnected...yes, its correct

    • 2 years ago
  14. AravindG Group Title
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    one last qn and i am done ,,well for this qn i think i gt crct anser bt i want t o knw if i need to take second derivative "find maximum and minimum value of 3x^4-8x^3+12x^2-48x+25

    • 2 years ago
  15. AravindG Group Title
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    ,,,

    • 2 years ago
  16. hartnn Group Title
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    yes, u need to..

    • 2 years ago
  17. AravindG Group Title
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    are answers 0 and 2?

    • 2 years ago
  18. hartnn Group Title
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    mim at x=2

    • 2 years ago
  19. AravindG Group Title
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    max at x=0 min at x=2 ryt?

    • 2 years ago
  20. hartnn Group Title
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    yes, both are correct..i had doubt with max at x=0

    • 2 years ago
  21. AravindG Group Title
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    thanx a lot!!!! it really helped cant tell u hw thankful i am !!

    • 2 years ago
  22. AravindG Group Title
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    seeya gn8 sweeet drms

    • 2 years ago
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