anonymous
  • anonymous
can someone find the derivative of this equation
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
\[\left( 2x ^{2}-\sqrt{x} \right)^{2} \]
Luigi0210
  • Luigi0210
Use chain rule
skullpatrol
  • skullpatrol
That is not an "equation"

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More answers

anonymous
  • anonymous
I tried it, but I'm at a step and I don't know what to do. And I know i didn't put y=
anonymous
  • anonymous
sorry
johnweldon1993
  • johnweldon1993
what step are you stuck on?
anonymous
  • anonymous
I have to use the product rule to solve it. So I did that. But some number have to cancel out and they don't since they all double if I add them.
anonymous
  • anonymous
\[(2\sqrt{x}-1)(4x*2\sqrt{x}+1)(2x^{3/2}-1)\]or\[-10x^{3/2}+16x^3+1\] http://www.wolframalpha.com/input/?i=d%2Fdx%28%282x%5E2-sqrt%28x%29%29%5E2%29 For future reference, http://www.wolframalpha.com.
anonymous
  • anonymous
I know what the answer is.
anonymous
  • anonymous
\[\left( 2x ^{2}-\sqrt{x} \right) \left( 2x ^{2}-\sqrt{x} \right) \] Is that what I would get in order to use the power rule on it.
anonymous
  • anonymous
sorry product rule
johnweldon1993
  • johnweldon1993
AHH product rule thank you for saying that lol...I was like umm how??? but yes...if that is the only rule you can use then yes that is what you would have so apply the product rule...
Loser66
  • Loser66
why dont' you open like (a+b)^2 and then take derivative term by term?
Loser66
  • Loser66
why product?
anonymous
  • anonymous
ok, so I did the product rule and now I have this \[\left[ 8x ^{3}-4x ^{3/2}-x ^{3/2}+1/2 \right] + \left[ 8x ^{3}-4x ^{3/2}-x ^{3/2}+1/2 \right] \]
johnweldon1993
  • johnweldon1993
that's the one they have to use...according to his instructions
anonymous
  • anonymous
thats were i'm stuck at
Loser66
  • Loser66
the question just ask "take derivative" not "apply product rule"
johnweldon1993
  • johnweldon1993
previous post "I have to use the product rule to solve it. So I did that. But some number have to cancel out and they don't since they all double if I add them."
Loser66
  • Loser66
ok, I am here, not in previous post!! sorry for that.
anonymous
  • anonymous
\[\left[ 8x ^{3}-4x ^{3/2}-x ^{3/2}+1/2 \right] + \left[ 8x ^{3}-4x ^{3/2}-x ^{3/2}+1/2 \right] \] thats what I have so far
Luigi0210
  • Luigi0210
wouldn't it be better to use chain rule?
anonymous
  • anonymous
I know I can use the chain rule, but I have to use the product rule. I'm studying for my final exam and if a question says use the product rule, i can't use the chain instead.
johnweldon1993
  • johnweldon1993
Would be...so much faster...but they have to use the product rule to solve it
anonymous
  • anonymous
can someone just help me and stop telling me to use the chain rule
anonymous
  • anonymous
@johnweldon1993 please help

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