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  • Member for 9 years, 9 months
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16 votes
Accepted

Use of the word "solve"?

9 votes

Simple algebra formula for which I can't find the right answer

7 votes

How come the function and the inverse of the function are the same?

7 votes

$\sum_{n=1}^{\infty} (a_n+b_n)=\sum_{n=1}^{\infty} a_n + \sum _{n=1}^{\infty} b_n$?

7 votes

How can I determine the value of this limit? $\lim\limits_{t \to -\sqrt{8}} \frac{t + 2\sqrt{2}}{3t^2 - 24}.$

6 votes

Question about factoring polynomial fraction

6 votes

How do I find the equation of a circle, given radius and centre coordinates?

5 votes

Can you give me a visual representation on 1/6 of 4/5 to get 4/30?

5 votes

What is the definition of 'within one' in mathematics

4 votes
Accepted

Playing audio files at lower % of regular speed - how long will they be? negative percentage / ratio calculation

3 votes

If two planes in $\mathbb{R}^3$ pass by the origin, do they necessarily intersect at multiple points?

3 votes
Accepted

Prove by a theorem.

3 votes
Accepted

In the proportion $\frac{ x}{100} = \frac{a}{total}$ which is the percent: $x$ or $\frac{x}{100}$?

3 votes

Work-hours problem

3 votes

finding the least square number divisibe by given numbers

3 votes
Accepted

If the average mark of all students in an exam is $30/100$, show at least $20\%$ of the students got at least $10/100$

3 votes

Modulus Implication

3 votes

How to derive $\;a^3 + b^3 = (a + b)(a^2 - ab + b^2)\;?$

2 votes
Accepted

A problem with progressive percentage incrementation

2 votes

Help in understanding this absolute value question

2 votes

Unorthodox way of getting the average of two numbers

2 votes
Accepted

How to calculate value of x in (1875+y):(x+y)=165

2 votes

Existence of increasing sequence $\{x_n\}\subset S$ with $\lim_{n\to\infty}x_n=\sup S$

2 votes
Accepted

Notation for a set of objects expressed by symbols

2 votes
Accepted

Preserving the order of a sequence of real numbers

2 votes
Accepted

Solution to this system of equations

2 votes

Quick question, Intersection and Spans

1 vote
Accepted

Completeness property of subsets of R

1 vote
Accepted

Preimage simple problem

1 vote
Accepted

Supremum of two unequal sets are equal