# What does sec pi/2 equal?

##### 1 Answer

Write your answer here...

Start with a one sentence answer

Then teach the underlying concepts

Don't copy without citing sources

preview

?

#### Answer

Write a one sentence answer...

#### Answer:

#### Explanation

Explain in detail...

#### Explanation:

I want someone to double check my answer

KillerBunny
Share

Oct 16, 2015

#### Answer:

The secant function can't be evaluated in

#### Explanation:

Just apply the definition and evaluate:

Thus,

But since

We can calculate the limit, so see if it's positive or negative infinite. Since the cosine function is positive before

Was this helpful? Let the contributor know!

Describe your changes (optional) 200