A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
Find the trigonometric functions, if possible, of Sec 3pi/2
anonymous
 4 years ago
Find the trigonometric functions, if possible, of Sec 3pi/2

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0So, I was told that sin and cosine cannot both be equal to zero, which is obvious. Based on the unit circle's point, (0,1) you can find the cosine easily. However, my teacher keeps telling me that the answer is wrong, can someone explain?

ash2326
 4 years ago
Best ResponseYou've already chosen the best response.0sec 3 pi/2 sec x= 1 / cos x sec (3* pi/2)= sec (pi+pi/2)=sec pi/2=  infinity so cos 3pi/2= 0 sin 3 pi/2= 1 tan 3pi/2 = tan (pi+ pi/2)= tan pi/2 = infinity

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Why can't you just use the point (01) amd move on from there? why is it infinity?

ash2326
 4 years ago
Best ResponseYou've already chosen the best response.0it's infinity because cos x =0 so 1/ cos x= infinity ( because cos and sec are negative in third quadrant)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.