49.9k views
1 vote
Evaluate: sec(5pi/4)

User STaefi
by
8.0k points

2 Answers

2 votes
if you see your unit circle
our coordinates for 5pi/4 are ( - rad 2 / 2 , - rad 2 /2)

sec is 1/cos

do some algebra
1/ - rad2/2
once you solve your final answer is - rad2
User Shreyangi Saxena
by
7.9k points
1 vote

Answer:

-\sqrt(2)

Explanation:

User Franchesco
by
8.8k points

Related questions

1 answer
2 votes
2.4k views
asked Jun 3, 2017 212k views
Guiorgy asked Jun 3, 2017
by Guiorgy
7.9k points
2 answers
1 vote
212k views