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alkabary
  • Member for 10 years, 8 months
  • Last seen more than 3 years ago
18 votes
Accepted

Why is this set of polynomials linearly dependent?

9 votes
Accepted

Show that left cosets partition the group

9 votes

Is $15/52$ equal to $17/59$?

8 votes
Accepted

Exponential integration problem

8 votes
Accepted

Greatest common Divisor of negative numbers

8 votes

How to find out the greater number from $15^{1/20}$ and $20^{1/15}$?

7 votes

What does it even mean to say 'preserve structure'?

6 votes

How to sum factorials: $(n+1)! + n!$

6 votes
Accepted

Prove by induction that for a natural number a there exists integers $x, y$ where $a = 7x + 2y?$

5 votes

I want to learn mathematics to extend myself.

5 votes
Accepted

Definition of prime element in a Euclidean ring does not make sense. Herstein - Topics in Algebra

5 votes

Failed Calc 2. It's the Algebra, stupid

4 votes
Accepted

About the topology textbook.

4 votes
Accepted

Quadratic equation with greatest integer functioin

4 votes

How to prove a cube minus a cube is never a cube (in whole numbers)

4 votes
Accepted

How do I get good grades in an exam?

4 votes

How to deduce $\,n^2+5n-12=0\,\Rightarrow\, n^3 = 37n - 60$?

4 votes
Accepted

Show that if $a, b$ and $m$ are integers such that $m \geq 2$ and $a \equiv b \pmod{m}$, then $\gcd(a, m) = \gcd(b, m)$

4 votes

SAT math problem about probability

3 votes

Logs rules and Solving

3 votes
Accepted

Prove $F(n) < 2^n$

3 votes

Where can I find a list of large prime numbers

3 votes

How do authors make their problems/exercises for their math books?

3 votes
Accepted

Is there a mathematical distinction between "on" and "in"?

3 votes

If $n = 4k + 1$, does $4$ divide $n^2 -1$?

3 votes

How would I solve: $\log_{16} 32 = x$?

2 votes

Find the last digit of the sum $1!+2!+3!+...+49!$

2 votes
Accepted

True or false. If $f(n) = \Theta(n^2)$ and $g(n) = \Theta(n^2)$ then $(f-g)(n) =\Theta(n^4)$ where we define $(f-g)(n)=f(n)-g(n) \forall n$.

2 votes

Help on understanding this congruency

2 votes

What equation represents the line that passes through $(–6, 7)$ and $(–3, 6)$?

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