Trig. Simplifying...

[shawie]

Can someone help me with this one? I don't even know how to approach this problem.

Simplify.
cot A sec A sin A

 

[skeeter]

you need to learn your basic identities ...

cot(x) = cos(x)/sin(x)

sec(x) = 1/cos(x)

try using these two in your simplification