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Luckyluck63
  • Member for 9 years, 4 months
  • Last seen more than 3 years ago
  • The world is my home!
13 votes
Accepted

Prove that the DFT Matrix is Unitary

2 votes

Solve $\int_{0}^{1}y(xt)dt=ny(x)$

2 votes
Accepted

Inverse of a square block matrix

1 vote

Prove using factorials that ${n\choose k}+2{n\choose k+1}+{n\choose k+2}={n+2\choose k+2}$

1 vote

Decode the message $(1,1,1,0,1,1,1)$ using the Hamming $ (7,4)$ code

1 vote

A is an antisymmetric matrix (of even size). B is another matrix such that $b_{i,j}=a_{i,j}+c$. Prove that |A|=|B|

1 vote

Given $\sin x =\frac{2t}{(1+t^2)}$, find $\tan x$ if $x \in [0, \pi/2]$

1 vote
Accepted

How to solve triple cross product?

1 vote
Accepted

Quick question about the row sums of a matrix

0 votes

Give a formal proof by induction that $f^k(m, n) = (m − kn, n)$ for all $k\in\Bbb Z^+$.

0 votes

Let $x=\frac{1}{3}$ or $x=-15$ satisfies the equation,$\log_8(kx^2+wx+f)=2.$

0 votes

Find the length of $BC$.

0 votes

Prove that the Matrix $BC$ has rank of at most $1$

0 votes

Bilinear maps and Bilinear algorithms

-1 votes

integrating a function within another function