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Papa
  • Member for 5 years, 11 months
  • Last seen more than a month ago
5 votes
1 answer
294 views

What is the domain of the function $f(x)=\sqrt[3]{x^3-x}$?

2 votes
4 answers
78 views

Square root of 6 proof rationality

2 votes
3 answers
67 views

which probability distribution is this when we toss a dice and assign a number based on result? [closed]

2 votes
1 answer
2k views

a^m b^n c^n prove it's not regular/pumping lemma

2 votes
0 answers
36 views

constructing grammar for 1*0*1(1+0)*

2 votes
1 answer
70 views

determine $f_Y$ given $f_X$, cdf then pdf or inverse function?

1 vote
1 answer
51 views

deriving pdf with two methods, with two different results

1 vote
1 answer
40 views

Unif affine function for RV U Unif distributed

1 vote
2 answers
66 views

Constructing grammar for $a^ib^j$ / $i\neq j$

1 vote
1 answer
604 views

intersection of two regular expressions [closed]

1 vote
1 answer
169 views

DFA conversion through state elimination and arden's method

1 vote
2 answers
2k views

An equivalence of $(X-a)(X-b)>0$ when $a<b$

1 vote
1 answer
86 views

Is $a \mapsto 2a$ bijective? [closed]

1 vote
0 answers
35 views

combination vs permutation. Order Vs no order matters

1 vote
2 answers
433 views

Triangle inequality proof by cases

1 vote
2 answers
78 views

Closed form solution for logarithmic inequality

0 votes
1 answer
47 views

How to approach such problems

0 votes
1 answer
40 views

Quantifiers and variable link

0 votes
2 answers
29 views

Two unknowns equation multiplied

0 votes
1 answer
42 views

Difference between mentioning existential quantifier and not

0 votes
2 answers
136 views

Determining 0+ vs 0- inside a square root function

0 votes
2 answers
43 views

Complex number z: |z| = 1 => z* = 1/z proof

0 votes
2 answers
62 views

A complex number is real proof

0 votes
2 answers
78 views

Second degree equation solutions involving and / Or

0 votes
1 answer
38 views

Quantifier difference

0 votes
0 answers
44 views

modular arithmetic problem puzzle [duplicate]

0 votes
1 answer
612 views

Algebralization of a puzzle

0 votes
2 answers
54 views

Function Differentiability, definability, where $f'(x) = 0$

0 votes
0 answers
28 views

Equivalent of limit

0 votes
1 answer
22 views

Finding y by the function of x factorization [closed]