A community for students.
Here's the question you clicked on:
 0 viewing
Wondermath
 4 years ago
The positions, p, of two objects, in metres, after t>= seconds are given by the following functions: p1(x)=xcosx+2 and p2=xsinx+1. When are the objects less than 2m apart during the first 20 secs?
Wondermath
 4 years ago
The positions, p, of two objects, in metres, after t>= seconds are given by the following functions: p1(x)=xcosx+2 and p2=xsinx+1. When are the objects less than 2m apart during the first 20 secs?

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0well, that depends on x ... did you mean that p1(t) = tcost(t) + 2 and p2(t) = tsin(t) + 1 after t seconds?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0If so, you want to find p1(t)p2(t) < 2.00

Wondermath
 4 years ago
Best ResponseYou've already chosen the best response.0oh so wud i have to use graphing technology to find that?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Not necessarily you can derive a crazy trig identity like: sin(x)cos(x) = sqrt(2) (sin (x  pi/4)

mathmate
 4 years ago
Best ResponseYou've already chosen the best response.2Assuming \[p1(t)=t \cos(t)+2\ and\ p2(t)=t \sin(x)+1\] Then p1(t)p2(t) <2 has 7 intervals between 0 and 20 seconds. You can find them analytically, and preferably graphing first.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0are your trig functions cosine and sine expecting Degrees or Radians?

Wondermath
 4 years ago
Best ResponseYou've already chosen the best response.0thanks guys i got it!
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.