implicit differentiation help. Somebody here has got to know how to do this problem... >.< nobody has been able to get it thus far. :| http://gyazo.com/53dfb49c3ca8d1a3b949b4f9f2afa67c
wow, talk about issuing a challenge :)
._.
where have you gotten so for
i've solved for dy/dx. plugged the x and y coordinates in and got -1.732. so that should be my slope for the tangent line. i plug in values to y-y1=m(x-x1). which would be y-1=-1.732(x+3sqrt3)
but when i set that equal to y, i dont get the right answer for some reason. doing something wrong
goku!! :)
hi :)
checking it now
\[\frac{2}{3}x^{-\frac{1}{3}}+\frac{2}{3}y^{-\frac{1}{3}}y'=0\]is a start
I got \(\large y' = \frac{\sqrt{3}}{3}\)
ye. got that far.
\(\large y-1 = \frac{\sqrt{3}}{3}(x + 3\sqrt{3})\)
just to compare.. i got y = -x/sqrt(3) -2 but he says its wrong .. i would like to see a different answer
cruffo y' shouldnt be negative ?
your right curffo. wonder what i was doing wrong. :l
So that probably solves it :)
darn negatives...
>.<
(2/3) * x^-(1/3) + (2/3) * y^-(1/3) * (dy/dx) = 0 dy/dx = -x^(-1/3) / y^(-1/3)
see pic
yes got it now .. when i plugged into x i plugged without the sign
wow thanks a lot. should have hlped me when you saw my problem the first time. :P
would have saved me an hr or so.
ha! what the fun in that.
LOL
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