anonymous
  • anonymous
Just want an answer checked: Find the derivative of the function given below. y = (3x4 – 3x + 5)^-3
Calculus1
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[-3 x (\frac{ 4x^3-3 }{ (3x^4-3x+5)^-4 }\]
anonymous
  • anonymous
that's not a -3x, it's -3 times the fraction.
hartnn
  • hartnn
why is there 3x multiplied ?

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hartnn
  • hartnn
then you are correct!
anonymous
  • anonymous
yay~~~ :)
anonymous
  • anonymous
there should be 12 x^3 in place of 4x^3
anonymous
  • anonymous
why?
anonymous
  • anonymous
it should be 12x^2 shouldnt it?
anonymous
  • anonymous
can you write correct answer for us
anonymous
  • anonymous
12x^3, i see why.
hartnn
  • hartnn
-3*(4x-3) will give -12x^3 +9 @uzumakhi
anonymous
  • anonymous
i didn't do out the derivative, i get it.
anonymous
  • anonymous
so i was right to begin with?
anonymous
  • anonymous
now im confused.. was my answer okay in the first place?
anonymous
  • anonymous
\[-3(\frac{ 12x ^{3}-3 }{ (3x ^{4}-3x + 5)^{4} })\]
anonymous
  • anonymous
recheck your answer with my answer then you find your mistakes
hartnn
  • hartnn
oh , yes.....sorry! u missed the 3 @uzumakhi is correct. sorry for confusion :(
anonymous
  • anonymous
no i have the same now because when you take the derivative of 3x^4-3x+5 it is 12x^3-3, i forgot to place my power rule on my 3x^4
anonymous
  • anonymous
that i want to tell in begining
anonymous
  • anonymous
i gotcha!
anonymous
  • anonymous
ok your wlcome

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