Mathematics
14 Online
OpenStudy (anonymous):
Equation of the tangent line
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OpenStudy (anonymous):
for: f(x) = (x-2)^(1/3) / (x^3 +4x -1)^2
at x = 1
OpenStudy (anonymous):
I tried it but cant get the slope right its supposed to be 23/96
OpenStudy (xapproachesinfinity):
did you find derivative at x=1?
OpenStudy (anonymous):
i got 61.3/256
OpenStudy (xapproachesinfinity):
hmm probably made a mistake when you did derivative
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OpenStudy (xapproachesinfinity):
in this case all i do is repeat the derivative and make sure i got thing the right way
OpenStudy (anonymous):
wait i can just check an online derivative thing. i can probably figure it out lol
OpenStudy (xapproachesinfinity):
hhh why don't you work it out instead that way you learn
OpenStudy (xapproachesinfinity):
wolfram will give you derivative if you just look for an answer lol
OpenStudy (anonymous):
oknthanks
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OpenStudy (xapproachesinfinity):
that should be the derivative
OpenStudy (anonymous):
Yup I got it just a little arithmetic mistake
OpenStudy (xapproachesinfinity):
tangent line you need a point
where is it?
OpenStudy (xapproachesinfinity):
y=f'(x-1)+f(1)
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OpenStudy (xapproachesinfinity):
that's the equation
but need f(1)
OpenStudy (xapproachesinfinity):
oh sorry i'm not thinking just plug in 1 into f(x)