User talk:ZIMINGYIN

Contents

Q2b Math104 (2016) and others on this exam108:33, 18 March 2018
Question 1 (e) in MATH110 (2017)204:25, 3 March 2018
Question 1(d) in MATH110 (2017)006:52, 27 February 2018
Question 1(c) in MATH110(2017)006:42, 27 February 2018
Question 1(b) in MATH110(2017).006:35, 27 February 2018
MATH103/April 2017/Question 07 (a)123:08, 11 February 2018

Q2b Math104 (2016) and others on this exam

Do you have permission to use that graphic? Also, I assume that your other solutions for this exam are copied from Shawn's solutions, so ditto in case you used his workings verbatim. (Yes, I know you can't copyright 2+3=5 or d/dx(sin x)=cos x, or whatever, but if your steps are identical, then, I think it's not right to copy this without attribution.)

08:06, 18 March 2018

Ziming

08:33, 18 March 2018

Question 1 (e) in MATH110 (2017)

Hi Ziming,

As I mentioned below, please add words between equations for Question 1 (e) in MATH110 (2017).

You can at least mention which rules you are using. If there's not much thing to say, then please place two equations in one line, like ${\displaystyle y'=...=...}$.

Also, to avoid students' confusion, please put \cdot between two fraction for example in ${\displaystyle y={\frac {1}{3}}{\frac {1+x^{2}}{x}}}$. Plus, it looks really better if you use \left( \right) when a fraction is in the bracket.

Thanks, Hyunju

06:58, 27 February 2018

Hi Hyunju,

Already fixed. Hope now looks better for students.

Best, Ziming

22:27, 2 March 2018

Thanks, Ziming!

-Hyunju

04:25, 3 March 2018

Question 1(d) in MATH110 (2017)

Hi Ziming,

The detailed equations are really good, but it would be very helpful for students if you add more words between equations, instead of arranging several equations without words. It would be easier if you assume that you are explaining the solution in the class or in the MLC.

I editted Question 1(d) in MATH110 (2017), so you don't need to revise it further :)

Best, Hyunju

06:52, 27 February 2018

Question 1(c) in MATH110(2017)

Hi Ziming,

According to your solution, (c) can also be the answer. Can you explain why (c) is excluded?

Best, Hyunju

06:42, 27 February 2018

Question 1(b) in MATH110(2017).

Hi Ziming,

Thanks for writing hints and solution for MATH 110 (2017) :)

For the question 01 (b), it would be great if you write more explanatory; Especially at the last line, adding more words as below would be really helpful for the student; In this problem, ${\displaystyle g(x)=x^{2}+2x}$, ${\displaystyle a=1}$, so g(a) = g(1) = ..... and g'(a)= g'(1)=.... Therefore, plugging these to tangent line formula, we have ${\displaystyle y=3+4(x-1)=4x-1}$.

Can you edit the solution a bit? Thanks!

Best, Hyunju

06:35, 27 February 2018

MATH103/April 2017/Question 07 (a)

Hi Ziming,

The graph looks very nice! Thanks for that. But can you add some explanation for your solution? (I guess you can mention the hint again and explain why the fixed points are the intersection points of two graphs, y=f(x) and y=x)

-Hyunju

23:20, 10 February 2018

Fixed it now :)

Cheers, Ziming

23:08, 11 February 2018