Find the value of the limit of the sequence defined by:

a(sub 1)=1

a (sub n+1)=13-(1/a(sub n))

I have no idea how to do that.

Find the value of the limit of the sequence defined by:

a(sub 1) = Square root of 10

a(sub n+1) = Square root of (10+a(sub n))

This one either. These are the only two out of 30 that I couldn't do. He said they'd be on the test so I need to learn... bummer.