Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

How do you evaluate $sec(pi)$ ?

1 Answer

May 25, 2016

$sec(pi)$ $=$ $1/cos(pi)$

Now you use this trivial identity: $cos(pi)=$ $(-1)$

$=1/-1$ $=>$ Refine $=$ $-1$

Related questions

See all questions in Trigonometric Functions of Any Angle

Impact of this question

45462 views around the world

You can reuse this answer
Creative Commons License