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Adnan's user avatar
Adnan's user avatar
Adnan
  • Member for 9 years, 1 month
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27 votes
3 answers
924 views

Evaluation of $\sqrt{\frac12+\sqrt{\frac14+\sqrt{\frac18+\cdots+\sqrt{\frac{1}{2^n}}}}}$

10 votes
10 answers
3k views

What is $\underbrace{555\cdots555}_{1000\ \text{times}} \ \text{mod} \ 7$ without a calculator

6 votes
3 answers
610 views

Antiderivative of $\frac{1}{\ln(x)}$?

4 votes
1 answer
285 views

Is this sum of 2 different irrational logarithms irrational: $\log_2(3)+\log_3(2)$?

4 votes
2 answers
13k views

How to calculate decimal factorials, like $0.78!$ [duplicate]

3 votes
1 answer
181 views

Notation of logarithms

2 votes
2 answers
127 views

Prove that $\Delta BPQ$ is an isosceles triangle

1 vote
0 answers
69 views

Fibonacci, prove that $F_{n}\cdot F_{n+2}-({F_{n+1}})^2=(-1)^n$ with induction [duplicate]

1 vote
2 answers
1k views

A report about complex numbers

1 vote
1 answer
175 views

Geometry question, prove that $\angle APB = \frac12 (\angle AMB + \angle CMD)$

0 votes
4 answers
74 views

Integral $\int \ (2x+6)^5+\frac{10}{(3x-1)^2} \text{d}x$

0 votes
2 answers
64 views

Why is the primitive of $f(ax+b)$ equal to $\frac 1a\cdot F(ax+b)+C$

0 votes
1 answer
49 views

Trigonometric ratios

0 votes
2 answers
2k views

Chances in a multiple choice test

0 votes
2 answers
29 views

Calculating the $n$th generation with $p_{n}=\frac{p_{n-1}(1-p_{n-1})}{1-{p_{n-1}}^2}$?

0 votes
3 answers
186 views

How to solve $2 \sin^2(x)+\cos^2(x)+\cos(x)=0$

0 votes
1 answer
390 views

How to solve equations like $2 \sin(x) = \cos(x)$

0 votes
2 answers
302 views

How to explain that $\sin(x) = 0$ gives $x = n\pi$

0 votes
1 answer
149 views

Rewrite $((p \land q)\lor(q \rightarrow(p\land \lnot r))$ to DNF

0 votes
3 answers
764 views

Can you prove that if $3 \mid 2a$, then $3 \mid a$, with prime factorization?

0 votes
6 answers
85 views

If $f(x)\ge g(x)$, is $f'(x)\ge g'(x)$?

0 votes
1 answer
176 views

Is $1.0000\cdots 0001$ equal to $1$ [duplicate]

0 votes
1 answer
50 views

Setting up a vector representation

0 votes
4 answers
286 views

Bell curve estimation

0 votes
2 answers
347 views

Prove by induction that $\sum^{n}_{k=1}5k-4=\frac12n(5n-3)$ is true for $n\ge 1$