JingleBells
 Name:
 Jingyi Yang
 School:
 About:
 Self study preparing for Alevel Double Maths & Econ in Singapore
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 3
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 Questions Asked
 19
 Questions Answered
 13
 Medals Received
 3

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Questions Answered

JingleBells:
Group Title
Curve Sketching: for any f(x) if as x rightarrow pm infty, f'(x) rightarrow c, a constant, does that mean that it has an asymptote? f'(x) ri…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

G1900:
Group Title
Hi all I have just joined. Do I we have to create a new study group or it's just like a regular forum for all who come and go??
…
 updated one year ago
 1 reply
 1 Medal
Mathematics

jjslocum3:
Group Title
Hello, just joining up. Prof. Jerrison is very quick and engaging. I have a question about the proof that differentiability = continuity in …
 updated one year ago
 3 replies
 2 Medals
Mathematics

Montes:
Group Title
In problem set 3. Exercise 2A7. how do you get the final step of the answer from 1/(1x^2) to approximately 1+x^2... Is it because of "the…
 updated one year ago
 1 reply
 1 Medal
Mathematics

JingleBells:
Group Title
Hello everyone: Problem Set 2 (Unit 2. Applications of Differentiation, 2A6)
I can do it using the basic approximation formulas, i.e. f(x)…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

JingleBells:
Group Title
Hi everyone, I'm doing Problems Set for revision in section 1D on limits and discontinuity 1D3 a) (x2)/(x^24) is not simplified for the p…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

HugoV65:
Group Title
In the second part of problem 1D5, why do I need to go back and use the a + b = 1 of the first part? I'm still with the mindset that b can …
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Dave.Wysocki:
Group Title
i have trouble starting the videos on my laptop.
i downloaded them into itunes u but the correct order does not show. when i try to acces…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

JingleBells:
Group Title
Has anyone watched Pro.Strang's Highlights of Calculus? In the video lecture on Growth Rates and Log Graphs he put down x! Does that mean th…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

JingleBells:
Group Title
Problem Set 1, 1H3 (c), Can someone help me with this? The solution y=[e^x+(e^x^2+4x^x)^1/2]/2
Is there a straight forward way to deduce…
 updated 2 years ago
 6 replies
 No Medals Yet
Mathematics

JingleBells:
Group Title
In video lecture 05 Budget Constraint around 29'30" did the Prof make a mistake in MRS mixing up the values of Pizzas and Movies at point A …
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

JingleBells:
Group Title
Just been doing Problem Set 1: Found a great way to think of the continuity/discontinuity of a function,j ust think of time: the only real l…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

levinotik:
Group Title
So, in the very first lecture (at the beginning), the professor has "find the tangent line to y = f(x) at P = (x0, y0). Can someone explain …
 updated 2 years ago
 21 replies
 1 Medal
Mathematics

JingleBells:
Group Title
Problem Set 1: 1D10
Show that
 updated 2 years ago
 5 replies
 No Medals Yet
Mathematics

Qamari:
Group Title
Hi every body I want some video and text book about engineering mathematics who can help me
I cant use youtube site
 updated 2 years ago
 8 replies
 1 Medal
Mathematics

opendiscuss:
Group Title
The slope of the graph of f(x) = x changes abruptly when x = 0. Does this
function have a derivative? If so, what is it? If not, why not?…
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

JingleBells:
Group Title
Problem Set 1A9 c) the answer only gave examples of g(x) at x=0,4,8 but any other value beyond these points don't fall on the graph at all.…
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

JingleBells:
Group Title
The graph of the function y=e^(x^2/2) isn't the same as the graph of the function y=e^(x) is it because that the first expression wants a …
 updated 2 years ago
 10 replies
 No Medals Yet
Mathematics

AirinaLis:
Group Title
I'm not sure how Δx works when it's being multiplied.
Ex. (x+Δx) (x+Δx)= ???
…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

keonlo:
Group Title
Is e^x the only function that has a same derivative of itself? if yes, how to proof it?
 updated 2 years ago
 12 replies
 1 Medal
Mathematics

JingleBells:
Group Title
Hi guys! Check out Prof. Gilbert Strang's new Calculus Highlights Videos! MIT OCW
 updated 2 years ago
 9 replies
 No Medals Yet
Mathematics

electricgirl4:
Group Title
this is my first time doing calculus if i need help can i get it
 updated 2 years ago
 7 replies
 No Medals Yet
Mathematics

JingleBells:
Group Title
In Video lecture 05 round about 37' where Pr. Jerison draws the f(x)=tan(x) and f(x)=arctan(x) the two curve crosses where if I plug in real…
 updated 2 years ago
 11 replies
 1 Medal
Mathematics

aniruddh:
Group Title
can anybody tell me how to download mit videos
…
 updated 2 years ago
 7 replies
 No Medals Yet
Mathematics

JingleBells:
Group Title
Hiya, anyone else here using these videos to prepare for CIE Alevels?
 updated 2 years ago
 10 replies
 No Medals Yet
Mathematics

Muz333:
Group Title
Hi there, bit of a strange one this. I'm a biologist about to start a PhD in a field of work that requires a certain level of mathematics.
…
 updated 2 years ago
 2 replies
 1 Medal
Mathematics