Question

why is this true?

Answer 1

which one?

Answer 2

limit of tanx/x = 1

Answer 3

when x approaches 0

Answer 4

apply the expansion of tan x

Answer 5

what is the expansion? can u explain?

Answer 6

u will find it here:
http://en.wikipedia.org/wiki/Taylor_series

Answer 7

How to do it without expansions? I havent learned that yet.

Answer 8

\[\lim_{x \rightarrow 0}(tanx/x)= \lim_{x \rightarrow 0}(sinx/x)/cosx\]

Answer 9

we know, lim x tends to 0, sinx/x =1 and cosx=1
so, combining, we can get 1/1=1

Answer 10

Im not really sure how you got from limx→0(tanx/x)=limx→0(sinx/x)/cosx

Answer 11

because tan x= sin x/cos x

Answer 12

whats the problem here ?!

Answer 13

why is