Hi all, I am having trouble simplifying or factoring the following trigonometric limits. I can't find the identities for the last two.
1. lim (1-tan(x))/(sin(x)-cos(x)) as x approaches pie/4
2. lim (sin(3t))/(2t) as t approaches 0
3. lim (sin(2x))/(sin(3x)) as x approaches 0
Any help would be appreciated!