# Thread: limit of the trigometric function

1. ## limit of the trigometric function

okay, so i've spent some time thinking about finding the limits of trigonometric functions when X->0, and you can't substitute the 0 in directly, but i can't seem to figure out the how, exactly, i can do it, please help:

lim (sec x-1)/(x sec x)
x->0

2. Multiply up & down by $\cos x$, what do you see?