AboutAlon Mandes Expertise Kind of questions I can answer : Limits, Derivatives, Integration, Implicit functions, continuousity, differentiation ,Extremum problems, Lagrange multipliers, Gradients, Surface integrals, Multi variables functions ,Multi variables Integrals,Complex variables ,Complex functions, Curves, Trajectory integrals & Vector analyse,Divergence,Rotor & word problems.
Kind of question I can't answer : Economics,Combinatorics,infinite series & convergence ,Statistics & Probabilities .
Experience 1. I'm a team member of mathnerds (math site for answering questions)
2. I'm a team member in the Student's Union of the Technion, helping
students who have problems in mathematics.
3. 2 years of experience as a math teacher in college.
4. I give free homework help for high school students in
Mathematics & Physics.
5. I teach part time in collage the subjects : "Digital Signal Processing" , "Random Signals & Noise" ,
"Complex Functions".
Question I had asked this question originally on the site:www.thestudentroom.co.uk But,I couldnot understand the answer as they said to apply chain rule of differentiation.Since the question is not like the general question on which we apply chain rule,I couldnot understand it.The attached picture on this question can be found on this link:http://www.thestudentroom.co.uk/attachment.php?attachmentid=56069&d=1216384477
The question goes like this-
In triangle PQR,
(chord PQ)^2=(PR)^2+(QR)^2=(delta x)^2+(delta y)^2
But,
how come this
(chord PQ/delta s(arc AP))^2*(delta s/delta x)^2=1+(delta y/delta x)^2
Please help me through this since I am facing lots of problem on this.
Answer I'm sorry, but I was asked to enter user name & password. So I couldn't see the picture of the question. & I think I didn't completely understand the problem. So if you rather explain it more
with details or help me visualizing more clearly the problem.
Thank you.
