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Posting Rules - Read Before Posting New Questions
By adhering to the simple rules and suggestions below, you contribute to a better experience for yourself, other members, and our moderators. Mis-categorized or poorly-posted questions can cause confusion and diminish the quality of forum content. Such posts may also lead to stress and disorganization. Following these 13 clear guidelines can foster a positive forum experience and even improve your GMAT performance! If this is not enough motivation, please be aware that disregarding or violating these rules may result in post removals, warnings, and potential bans. We kindly ask you to follow the rules. Thank you!
1. Use the Search Box Before Posting.
- We have 30,000 questions discussed. It's likely that your intended post already exists: Forum Search
2. Select the Appropriate Forum.
- Post PS questions in the PS subforum and DS questions in the DS subforum. Do not post PS/DS questions in the main Math forum.
3. Assign a Relevant Topic Name (IMPORTANT).
- Use the first sentence of the question for the topic name. You have 40 characters at your disposal. Make the most of them to aid with search functionality and the similar topics feature!
4. Post Only One Question per Topic.
- Avoid posting multiple questions in the same post, as it hinders timer, search, tags, and other functions.
5. Do Not Alter the Question.
- Maintaining the integrity of the original question is crucial. Every word in a question is there for a reason!
6. TYPE the Question and Solution as Text.
- Refrain from posting pictures of questions or solutions. Pictures are only acceptable when a question has a diagram. If a diagram is present, attach it using JPG/GIF/PNG formats. Do not use Word or PDF documents.
7. Indicate the OA (Official Answer)
- Utilize the A, B, C, D, E radio buttons and ensure you post the answer choices.
8. Include Answer Choices for PS Questions
- Ensure all PS questions are accompanied by A, B, C, D, E answer choices!
9. Use Formulas that Look Like Formulas!
- Help us to help you. It is quite easy, and will increase the value of your questions. (See directions HERE.)
10. Apply Tags to Your Questions.
- A minimum of 3 tags is needed: difficulty level (in your opinion), question category, and question source. Feel free to use additional tags as relevant. Observe the positive impact of using tags here: Data Sufficiency, Problem Solving, Critical Reasoning, Reading Comprehension, Sentence Correction. Also, explore our entire Question Bank by Tags.
11. Refrain from Short/Useless Posts (they will be deleted) and Use the Kudos Button Instead.
- When answering a question, ensure your post adds value. Responses like "+1 A," "Awesome solution!" or "Great Question!" don't qualify. Press the Kudos button instead.
12. ONLY Reliable GMAT Source Questions Allowed on the Forum!
- Do NOT post questions from random math books or websites. Avoid posting self-made questions in PS/DS forums; use this topic instead: Users' Self-Made Questions Non-GMAT questions will be deleted without notice.
13. Do NOT Request Kudos in Your Posts.
- Posts that deserve kudos will eventually receive them. Refrain from asking others to give Kudos to your posts publicly or privately.
Thank you! We appreciate your understanding and support. Good luck on the GMAT!
For any questions, suggestions, or ideas related to this thread, please post below.
Also, review How to Write Mathematical Formulas on the Forum
Attachment:
read-carefully.gif
Writing Mathematical Formulas on the Forum
I think that everybody will agree that \({(\sqrt{9+\sqrt{80}}+\sqrt{9-\sqrt{80}})^2}\) is much easier to understand than (sqr root of (9 +sqr root of 80)+sqr root of (9 - sqr root 80))^2.
So, in order to help you with the questions you post more efficiently please use the following guide to write math formulas.
In most cases you'll just need to do 2-3 simple steps:
Simple Formulas
How to make 7x^2+5(x+3)>1 to look like \(7x^2+5(x+3)>1\)
Step 1: Mark 7x^2+5(x+3)>1;
Step 2: Press m button.
Fractions
How to make (x+3)/(x+5)>0 to look like \(\frac{x+3}{x+5}>0\):
Step 1: Mark the fraction (x+3)/(x+5);
Step 2: Press fraction button;
Step 3: Now, mark the whole expression and press m button.
Square roots
How to make (x+5)^(1/2)<17^(1/2) to look like \(\sqrt{x+5}<\sqrt{17}\):
Step 1: Mark x+5 and press square_root button, then mark 17 and press square_root button again;
Step 2: Now, mark the whole expression and press m button.
Other Useful Symbols
Another Way of Writing Fractions:
How to make (a+b)/c to look like \(\frac{a+b}{c}\)
Step 1: Write \frac{a+b}{c}, (note that numerator and denominator must be enclosed in { } and you must write out \frac to tell the system that it is a fraction);
Step 2. Mark the whole expression and press m button.
Exponents
How to make x^12 to look like \(x^{12}\)
Step 1: Write x^{12}, (note that multi-digit powers must be enclosed in { });
Step 2. Mark the whole expression and press m button.
Roots
How to make 3rd root of x^2 to look like \(\sqrt[3]{x^2}\)
Step 1: Write \sqrt[3]{x^2}, (note that 3 must be enclosed in [ ] and 2 must be enclosed in { });
Step 2. Highlight the whole expression and press m button.
Inequalities
\(x\approx{3}\): write x\approx{3} and press m button (note that 3 must be enclosed in { }).
\(x\leq5\): write x\leq{5} and press m button.
\(x\geq3\): write x\geq{3} and press m button.
\(x\neq0\): write x\neq{0} and press m button.
Subscript
\(x_1\): write x_1 and press m button. If a subscript is more than one-digit number, for example \(x_{15}\) then write x_{15} and press m button (note that such kind of subscripts must be enclosed in { }).
Geometry
\(\pi\): write \pi and press m button;
\(\angle\): write \angle and press m button;
\(90^{\circ}\): write 90^{\circ} and press m button;
\(\alpha\): write \alpha and press m button;
\(\triangle\): write \triangle and press m button.
Full reference link for the extra curious: https://en.wikibooks.org/wiki/LaTeX/Mathematics#Math_operators
In case of Any Questions Please Post them Here: https://gmatclub.com/forum/writing-mathe ... 68-20.html or PM the Math Forum Moderator, Bunuel.
05 Aug 2017, 19:05
Kudos
Bookmarks
To embed fractions within fractions:
How to make ((x/4)/d) to look like \(\frac{\frac{x}{4}}{d}\) OR (x/(4/d)) to look like\(\frac{x}{\frac{4}{d}}\)
Step 1: Write \frac{\frac{x}{4}}{d} OR \frac{x}{\frac{4}{d}}
Step 2. Highlight the whole expression and press m button.
How to make ((x/4)/d) to look like \(\frac{\frac{x}{4}}{d}\) OR (x/(4/d)) to look like\(\frac{x}{\frac{4}{d}}\)
Step 1: Write \frac{\frac{x}{4}}{d} OR \frac{x}{\frac{4}{d}}
Step 2. Highlight the whole expression and press m button.
