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Rushabh Mehta's user avatar
Rushabh Mehta's user avatar
Rushabh Mehta's user avatar
Rushabh Mehta
  • Member for 6 years, 2 months
  • Last seen more than a week ago
77 votes
Accepted

Function defined everywhere but continuous nowhere

25 votes
Accepted

How do you find Pythagorean triples that approximately correspond to a right triangle with a given angle?

15 votes

How to solve these $3$ equations for three unknowns $x$,$y$,$z$?

13 votes
Accepted

How to solve $\sin^2(x)+\sin2x+2\cos^2(x)=0$

13 votes
Accepted

$(x^2+1)(y^2+1)=z^2+1$

12 votes
Accepted

A way to express 100 by using the first four natural numbers

12 votes
Accepted

Normal of a point on the surface of an ellipsoid

11 votes
Accepted

$a+b+c+d+e+f=14$ , where $a,b,c,d,e$ and $f$ are whole numbers $\le 4$

11 votes

"Abstract nonsense" proof of the splitting lemma

10 votes
Accepted

Are the sets of a power set considered "elements?"

10 votes
Accepted

Has this basic number theory conjecture been discovered or proved before?

8 votes

Three coins are tossed. If one of them shows a tails, what is the probability that all three coins show tails?

8 votes

Where are the irrational numbers?

7 votes

Can an integer that is $3\pmod 7$ be expressed as a sum of two cubes?

7 votes

Street Combinatorics - 6 by 7 grid

7 votes

Prove that there is no non-constant polynomial $P(x)$ such that $P(n)$ is a prime number for all positive integers n

7 votes

Optimisation without calculus

6 votes

For real numbers $x$ and $y$ , find the minimum value of $\sqrt{x^2+y^2}+\sqrt{(x-3)^2+(y-4)^2}$

6 votes

Tom & Jerry and True/False Answers Logic Puzzle

6 votes

Construct an A4 paper.

6 votes

About Utterly odd numbers.

6 votes
Accepted

Show pairwise disjoint open intervals at most countable

6 votes

Bijective function excluding 0

6 votes
Accepted

span($v1,v2,v3$) = span($v1,v2$) Why can't the left side be linearly independent?

6 votes

Can you determine a set of values from a set of sums?

6 votes
Accepted

Number of solutions for a given logical equation

6 votes
Accepted

Expected value with a die with 9 faces

6 votes
Accepted

who is the knight, knave and spy?

5 votes
Accepted

Shouldn't the definition of a prime number be changed to account for negative factors?

5 votes
Accepted

Why derivatives should work?

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