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TheLogicGuy
  • Member for 8 years, 8 months
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67 votes
15 answers
8k views

Why do I get one extra wrong solution when solving $2-x=-\sqrt{x}$?

4 votes
4 answers
17k views

In $Ax=b$. If $A$ is not invertible there are no solutions or infinity. How to determine what the case is? [duplicate]

3 votes
4 answers
694 views

Find a recursive formula to the given closed formula

3 votes
2 answers
1k views

$k$ balls are thrown into $n$ bins, what is the probability that no bin is empty (all balls different)?

2 votes
6 answers
229 views

Not getting the same solution when using the rule sin(x)\x=1 on a limit

2 votes
1 answer
101 views

How to prove that $\sum_{i-is-even}^n \binom{n}{i} = \sum_{i-is-odd}^n \binom{n}{i}$

2 votes
2 answers
169 views

Probability question - inclusion/exclusion doesn't work. What else possible here?

2 votes
1 answer
714 views

Get from prime number theorem to the approximate equality of nth prime to n*logn

1 vote
3 answers
140 views

How to find the interception points with $x$ axis of this function?

1 vote
3 answers
48 views

Validity of Inductive Proof - Proof Confirmation

1 vote
0 answers
295 views

How to prove by induction the formula to find LCM of two numbers for multiple numbers?

0 votes
1 answer
331 views

Does every congruence class modulo m has an inverse pairing?

0 votes
2 answers
82 views

How to solve $y^2 \ge x^2$?

0 votes
0 answers
62 views

Learning gaussian distribution got confused between two equations

0 votes
1 answer
148 views

What the meaning of "vertices induce hyperedges" in hypergraphs?