I have a collection of Trig problems that are giving me some difficulty...

1. Finding the Period, Phase Shift, and Asymptotes for the following expressions
3+4cot(5x-2)
y=-3tan2(pi X-pi/4)
2. Find the exact value for
tan105
sin195
cos51cos9-sin51sin9
3.Simplify the expression
1+cosx + sin x
sin x 1+cos x

1+secx
sinx + tanx

1 +siny
1 +cscy

thanks in advance for all help...these are some HW problems that i am confused on and i have an exam in the coming week, so if explanations could be given for all problems that would be nice as well