Roger Burt's user avatar
Roger Burt's user avatar
Roger Burt's user avatar
Roger Burt
  • Member for 10 years
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12 votes

Why ${n \choose k} = {n \choose n-k}$?

3 votes
Accepted

Did I compute this limit correctly?

2 votes

$\log \left(a^x\right)=x \log (a)$ and $-\log _x(2)=-\frac{1}{\log _2(x)}$

2 votes

Why does $2+{{n}\choose{1}}+{{n}\choose{2}}+\ldots+{{n}\choose{n-1}}=(1+1)^n$

2 votes

Can someone explain the steps of manipulation of this equation for the value of x?

2 votes

Prove that for all positive integers $n, 9|(11^ n − 2 ^n )$

2 votes

Indefinite Integral $\int \frac{dx}{\sqrt {ax^4-bx^2}}$

1 vote

How to integrate this fourier transform?

1 vote
Accepted

Laurent Expansion partial fractions

1 vote

How to solve $\int\frac{dx}{\sqrt{4-x^2}}$ with trigonometric substitution?

1 vote

Simple Question About Residues/Poles/Zeros/Singularities

0 votes

Linear Factorization of Complex Polynomials

0 votes
Accepted

Eigenvalues of negative companion matrix

0 votes

Express $4\ln(x)+2\ln(x^4y^3)+5\ln(z)$ as a single logarithm

0 votes

Integrate $\int \frac{\sin^2(x)}{1+\sin^2(x)}dx$