I need some help solving the following problems using the L'Hospitals rule.

I'd really appreciate it if someone could walk me through the steps for solving the problem.

1. limit(x (approaches) (infinity)) xsin((pi)/x)

2. limit (x (apporaches) ((pi)/4)) (1-tanx)secx

I have more but I think I'll be able to solve the rest if I find out how to do these two.