tmagloire1
  • tmagloire1
Can anyone help with this AP Calculus AB problem? Here is the picture of the question. Thanks in advanced http://prntscr.com/7u6a4c
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
do you know the product rule?
tmagloire1
  • tmagloire1
yes u'v(uv')
anonymous
  • anonymous
you add them :) \[\frac{ d(uv) }{ dx }=u'v+uv'\]

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anonymous
  • anonymous
So you can let u = x and v = sin x
tmagloire1
  • tmagloire1
Ohh and if i get xsinx than its true
anonymous
  • anonymous
Looks like its asking you to take the 3rd derivative of x sin x and if that matches the stuff on the right it's true
tmagloire1
  • tmagloire1
oh okay ill try it
tmagloire1
  • tmagloire1
I got -3sinx+xcosx
tmagloire1
  • tmagloire1
so its false
anonymous
  • anonymous
I got -3 sin x - x cos x
tmagloire1
  • tmagloire1
Oh I must have missed the negative
tmagloire1
  • tmagloire1
So it would be true than
anonymous
  • anonymous
yes
tmagloire1
  • tmagloire1
Thank you so much!
anonymous
  • anonymous
yw

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