limits

[xc630]

Hello I need to find the given limit in this problem

lim sec (1/n)

Under lim is: n arrow infinity

How would I go about doin this? I was told I could use a graphing caluclator but I don't know how.

 

[soroban]

Hello, xc630!

You can solve this with basic trig . . .

\(\displaystyle \lim_{n\to\infty}\sec\left(\frac{1}{n}\right)\)

As \(\displaystyle n\to\infty,\;\frac{1}{n}\to 0\)

What is \(\displaystyle \sec(0)\) ?

 

[xc630]

Thank you soroban. I believe it is one.