AravindG
  • AravindG
find maximum and minimum values for the function g(x)=x^3-3x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
AravindG
  • AravindG
@hartnn
hartnn
  • hartnn
what u got as first derivative ?
AravindG
  • AravindG
3x^2-3=0 x^2=1 x=1,-1

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More answers

AravindG
  • AravindG
should i take second derivative?
hartnn
  • hartnn
correct. here u can just put the values in g(x) and by inspection u can tell which is max
hartnn
  • hartnn
mathematically, u should take 2nd derivative...
AravindG
  • AravindG
max at x=-1 and minimum at x=1
AravindG
  • AravindG
bt then why we took second derivative in last qn?
hartnn
  • hartnn
because we can't find the max or min just by putting the points and inspection, can we ?
AravindG
  • AravindG
i see is my final answers ryt?
AravindG
  • AravindG
....
AravindG
  • AravindG
u dr??
hartnn
  • hartnn
sorry, got disconnected...yes, its correct
AravindG
  • AravindG
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
AravindG
  • AravindG
,,,
hartnn
  • hartnn
yes, u need to..
AravindG
  • AravindG
are answers 0 and 2?
hartnn
  • hartnn
mim at x=2
AravindG
  • AravindG
max at x=0 min at x=2 ryt?
hartnn
  • hartnn
yes, both are correct..i had doubt with max at x=0
AravindG
  • AravindG
thanx a lot!!!! it really helped cant tell u hw thankful i am !!
AravindG
  • AravindG
seeya gn8 sweeet drms

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