A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
A (vertical) fence 2.3 m high is located 1.2 m away from the (vertical) wall of a building. In this question, we shall take steps to find the shortest ladder that can reach the wall from the ground outside the fence.
(a) The two ends of the ladder are touching respectively the wall and the ground. We may also assume that the ladder touches the top of the fence, for otherwise the ladder could not be the shortest. If the ladder makes an angle of x radians with the ground, 0<x<2, then we can express the length, L (in meter), of the ladder in terms of x as follows:
anonymous
 5 years ago
A (vertical) fence 2.3 m high is located 1.2 m away from the (vertical) wall of a building. In this question, we shall take steps to find the shortest ladder that can reach the wall from the ground outside the fence. (a) The two ends of the ladder are touching respectively the wall and the ground. We may also assume that the ladder touches the top of the fence, for otherwise the ladder could not be the shortest. If the ladder makes an angle of x radians with the ground, 0<x<2, then we can express the length, L (in meter), of the ladder in terms of x as follows:

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0L = (A/sinx) + (B/cosx) where A and B are constants. Find them. (b) Find the limit of L as x approaches the endpoints 0 and pi/2 from the appropriate sides. Answer: The limit of L as x approaches 0 from the right is _________, and the limit of L as x approaches 2 from the left is ______________. (c) Find the value of x for which L attains its absolute minimum value. Hence, find the length of the shortest ladder. Answer: L attains its absolute minimum value when x = _______________ radians, and the length of the shortest ladder is _______ m
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.