anonymous
  • anonymous
what is the value of f'(x) = A x^B when f(x) = 3/x^11?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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myininaya
  • myininaya
\[y=3x^{-11}\] use power rule
anonymous
  • anonymous
wait how did you get the -11
anonymous
  • anonymous
thats what I put and its says its wrong

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anonymous
  • anonymous
a=? b=?
myininaya
  • myininaya
so you used the power rule ?
myininaya
  • myininaya
and what did you get?
anonymous
  • anonymous
for some reason A is not =3
myininaya
  • myininaya
yeah that is because A does not =3 and B does not -11
anonymous
  • anonymous
I got -3x^10
myininaya
  • myininaya
you need to use the power rule for \[y=3x^{-11}\]
myininaya
  • myininaya
bring down the -11 and then subtract 1 from the exponenet
myininaya
  • myininaya
\[y'=3(-11)x^{-11-1}\] just like i did here
anonymous
  • anonymous
11X3=33 so it would be 33x^10?
anonymous
  • anonymous
am i right?
anonymous
  • anonymous
ok im right nevermind thanks
myininaya
  • myininaya
no \[y'=-33x^{-12}\]
anonymous
  • anonymous
-33X^-12
anonymous
  • anonymous
Im meant that
myininaya
  • myininaya
-11-1=-12 3(-11)=-33

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