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I am new to Latex. I need some help with LaTeX editing.

I am required by my course supervisor to copy a few exam questions as exercise. Below are the questions (some are hidden to avoid troubles):

questions

Here are my following questions:

  1. How can I input the inline matrix equation as shown? I have tried the Overleaf solution, but the output is awful.

    Trying to typeset an inline matrix here $\begin{pmatrix} a & b\\ c & d \end{pmatrix}$ but it looks too big, so let's try $\big(\begin{smallmatrix} a & b\\ c & d \end{smallmatrix}\big)$ instead.

  2. Also, how can I type in the mark indication (i.e. the circled [6 points]) as the format shown in the picture? I asked my tutor and was told that "\hfill" might help. However, it didn't work.

I use the following format for the listing:

enter image description here

I would be grateful if someone can help.

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  • Welcome to TeX. SE. Please show us what you try so far. The best in form of small complete document (called MWE; Minimal Working Example), which we can test as it is and which reproduce your problem. Commented Aug 14, 2020 at 5:24

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This may help you:

\documentclass{article} \usepackage{mathtools} \usepackage{nccmath} %---------------- show page layout. don't use in a real document! \usepackage{showframe} \renewcommand\ShowFrameLinethickness{0.15pt} \renewcommand*\ShowFrameColor{\color{red}} %---------------------------------------------------------------% \usepackage{lipsum} \begin{document} \begin{enumerate} \item Trying to typeset an inline matrix here as \verb+pmatrix+: $\begin{pmatrix} a & b\\ c & d \end{pmatrix}$ but it looks too big, so let's try to use \verb+psmallmatrix+: $\begin{psmallmatrix} a & b\\ c & d \end{psmallmatrix}$ instead. \hfill [6 points] \item Trying \marginpar{[6 points]} to typeset an inline matrix as \verb+psmallmatrix+ defined in the package here $\begin{psmallmatrix} a & b\\ c & d \end{psmallmatrix}$ gives hopefully satisfactory result. Here the point achieved solving this task is in page margin. Instruction for it should be inserted after firs word in theparagraph/item. \item One \marginpar{[6 points]} more possibilities id us \verb+mpamtrix+ defined in the \verb+nccmath+ package: $\Bigl(\begin{mmatrix} a&b\\c&d\end{mmatrix}\Bigr)$ which gives medium sized matrix which you may liked :-). Here the point achieved at solving this task is in page margin as in previous case. Instruction for it should be inserted after firs word in the paragraph. \end{enumerate} \end{document}

enter image description here

(red lines shows page layout)

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