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2d
answered How to guess that $f(x,y)$ has no limit?
Jan
23
comment Probability of winning lottery
Hi and welcome to the site! Since this is a site that encourages learning, you will get much more help if you show us what you have already done. Could you edit your question with your thoughts and ideas?
Jan
22
comment Total number of distinct solution produced by polynomial
@nikhilbhr If $a=b=0$, then you only get one possible number, and that is $0$. Therefore, $1$ is the lower bound.
Jan
22
awarded  Enlightened
Jan
22
awarded  Nice Answer
Jan
22
comment Do you have any idea?
What is $m(B)$? Also, what have you tried so far?
Jan
22
comment Total number of distinct solution produced by polynomial
@nikhilbhr And I edited my answer.
Jan
22
revised Total number of distinct solution produced by polynomial
added 347 characters in body
Jan
22
revised Total number of distinct solution produced by polynomial
added 11 characters in body
Jan
22
answered Total number of distinct solution produced by polynomial
Jan
21
answered Find two linearly independent vectors that lie within the plane 2x + y +z=4. verify they are linearly independent
Jan
21
comment Commutative matrices
@pau $2c=3b=0$ is wrong, you only have $2c=3b$, or, equivalently, $2c-3b=0$.
Jan
21
comment Commutative matrices
Your FIRST matrix seems wrong. Can you show the equations that led to it? Write the steps that changed the original $4$ equations into this matrix.
Jan
21
comment Commutative matrices
@pau Then please edit your question how you got from the equations you get from $AB=BA$ to the equations you wrote.
Jan
21
answered Commutative matrices
Jan
21
comment Showing coercivity of a function
@diabloescobar That is true, but that does not change the fact that $f(a,v) = 0$ if $v$ is perpendicular to $a$, no matter how large $v$ is.
Jan
21
comment Problem with Poisson distribution
Hi and welcome to the site! Since this is a site that encourages learning, you will get much more help if you show us what you have already done. Could you edit your question with your thoughts and ideas?
Jan
21
comment Cantor - No set is equinumerous with its power set.
@evinda Of course, but please, ask it in a separate question. If my answer is what you needed, then accept it and ask a new question, that's how the site works...
Jan
21
comment Which one is true?
Downvote from me for being so lazy you don't even have the willpower to retype the question, let alone post some of your own work...
Jan
21
comment Computing $ \lim_{x\to 0}\bigl(\frac{1}{x}+\frac{1}{x^2-x}\bigr)$
@Taehoon If my answer is what you needed, consider accepting it.