A community for students.
Here's the question you clicked on:
 0 viewing
 2 years ago
Find the point on the terminal side of θ =3pie/4 that has a y coordinate of 1. Show your work for full credit.
 2 years ago
Find the point on the terminal side of θ =3pie/4 that has a y coordinate of 1. Show your work for full credit.

This Question is Closed

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4the goal is to find the coordinates of the point at the end of that angle. We are told that y = 1 at that point so we just need to find the x coordinate and we're set

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4to do this we use the triangle that is made when you draw a line straight down from the point like I have in the drawing

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4we know the length of that side is one because we were told that y = 1

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4now if we knew the angle inside that triangle we could use the tangent function to find the length of the adjacent side, which I labelled x.

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4any idea how we can find it?

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4nope, you used the wrong angle, we need to find the angle inside that triangle

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4the 3pi / 4 is outside the triangle

marasofia1616
 2 years ago
Best ResponseYou've already chosen the best response.0If I use the Unit Circle and says that 3pi/4 is 135... and I am looking for that inside angle I get that it is equal to 45.

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4right, so now we can use tangent to find x \[\tan(45) = \frac{ 1 }{ x }\]

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.4isolate x and you've got it

marasofia1616
 2 years ago
Best ResponseYou've already chosen the best response.0got it... thanks!

AG1997
 one year ago
Best ResponseYou've already chosen the best response.0So the point would be (1, 1)?
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.