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+secxsinx + tanx

1 +siny1 +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