Question

Find the equation of the tangent line for the given function at x=(pi/3).
f(x)=4tan(x)

Answer 1

So I already worked this problem out, and found that the slope of the tangent line is 16.

Answer 2

I give the equation of the tangent line using y-y1=m(x-x1)

Answer 3

But I think I'm missing something. Is there a y1 value here? I don't see one.

Answer 4

x1=(pi/3), m=(16), y1=(?)

Answer 5

I thought that y would be zero, but wolfram is telling me that is incorrect.

Answer 6

y = 4tan(pi/3)

Answer 7

Oh...psshh. THat makes sense lol.

Answer 8

I get stupid sometimes.

Answer 9

we all do.
http://openstudy.com/updates/506e1f6ee4b060a360ff3a55

Answer 10

algebra fail lol.

Answer 11

Ha, yep. Thanks.