How does bigO(5*2^n + 1000n^100) become bigO(2^n)?
4100
What is a plain English explanation of "Big O" notation?
78860
Proof by induction that recursive function $\text{take}$ satisfies $\text{take}(n) = 100 - 2n$
53751
Prove that $2^{10}+5^{12}$ is composite
112120
Find all primes of the form $2^{2^n} + 5$ for a nonnegative integer n
109440
How does $(12\dots n)$ and $(a\, b)$ generate $S_n$?
119691
$5^{x}+2^{y}=2^{x}+5^{y} =\frac{7}{10}$ Work out the values of $\frac{1}{x+y}$
83909
Is $2^{2n} = O(2^n)$?
86965
Limit of this recursive sequence: $x_{n+1}=\bigl(1-\frac{1}{2n}\bigr)x_{n}+\frac{1}{2n}x_{n-1}.$
157336
What is the result of $\bigcap_{n=1}^{\infty}{(-1/n; 1/n)}$
151553
Big-O proof showing that t(n) is O(1)
153594
When is $1^5 + 2^5 + \ldots + n^5$ a square?
99908
When does $120$ divide $n^5 - n$
23557
Algebraic Proof that $\sum\limits_{i=0}^n \binom{n}{i}=2^n$
47914
Prove $\Bbb{Z}_{100} \times \Bbb{Z}_{10}$ is not isomorphic to $\Bbb{Z}_{1000}$
86348
Proving $\sum\limits_{k=0}^{n-1} \Bigl[x + \frac{k}{n}\Bigr] = [nx]$
73307
Why is the last digit of $n^5$ equal to the last digit of $n$?
1840
How can I prove that $\log^k(n) = O(n^\epsilon)$?