The expressions A,B,C,D, E are left hand sides of identities. The expressions 1,2,3,4,5 are right hand side of identities. Match each of the left hand sides below with the appropriate right hand side. Enter the appropriate letter (A,B,C,D, or E) in each blank.

A. $\tan(x)$
B. $\cos(x)$
C. $\sec(x)\csc(x)$
D. $\frac{1-(\cos(x))^2}{\cos(x)}$
E. $2\sec(x)$



1. $\tan(x)+\cot(x)$
2. $\sin(x)\sec(x)$
3. $\frac{\cos(x)}{1-\sin(x)}+\frac{1-\sin(x)}{\cos(x)}$
4. $\sin(x)\tan(x)$
5. $\sec(x)-\sec(x)(\sin(x))^2$