How to use Ti-84 to find function value for secant?

Question

How do you go about find the secant function value of 48 degrees and 20 minutes on a Ti-84 Plus?

Answer 1

First make sure you're in degree mode:
hit [mode]
In the third row down degree should be highlighted(white letters on black background)
If not, hit down arrow twice and right arrow once and hit [enter].
Degree should now be highlighted. Hit [clear]
20 minutes is one third of a degree.
secant is 1/cosine
Here's the key sequence:
[1] [÷] [cos] [4][8] [+] [1] [÷] [3] [enter]
You should get:
1.504221148