A calc problem...
If f(x) = 3secx - 2cosx + 4,
evaluate the limit as x-(4pi/3) (f(x)-f(4pi/3))/(x-(4pi/3))

Question

A calc problem... 
If f(x) = 3secx - 2cosx + 4, 
evaluate the limit as x->(4pi/3)  (f(x)-f(4pi/3))/(x-(4pi/3))

jigglypuff314 · Answer

If f(x) = 3secx - 2cosx + 4, 
evaluate the limit
$$\lim_{x \rightarrow 4\pi /3} \frac{ f(x)-f(4\pi /3) }{ x - (4\pi /3) }$$

anonymous · Answer

You can do it.  It's a derivative.

jigglypuff314 · Answer

is it -5√3 ?

anonymous · Answer

not even sure how you got that.  Where are you stuck anyway?

jigglypuff314 · Answer

why don't you try plugging in and look for the limit first
this was a bonus question on my test... I think my teacher was trolling...

jigglypuff314 · Answer

I got the answer that I got by finding the derivative then plugging in (4pi/3)
but not sure how to get the answer by limit process 0.o

anonymous · Answer

Well, it probably takes a lot of algebra that sucks to do.