Question

What is the sec of pi/4?

Answer 1

`sec(pi/4)=1`

Explanation:

An angle of `pi/4` can be represented as a standard triangle with adjacent and opposite side both `=1` and hypotenuse `=sqrt(2)`

By definition
`sec = ("adjacent")/("opposite")`

So
`sec(pi/4) = 1/1 = 1`