Integrate.

1. $\int 2 \operatorname { sec } ( x ) \operatorname { tan } ( x ) d x$

   Step (a):

   It might be easier to integrate if you factor out the coefficient first.

2. $\int \operatorname { csc } ^ { 2 } ( 2 x ) d x$

   Answer (b):

   What is the value of ^{$^{a}$}?