Mathematics
Derek Luna's user avatar
Derek Luna's user avatar
Derek Luna's user avatar
Derek Luna
  • Member for 5 years, 3 months
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All Questions Answers
Score Newest
answer
5
Inequality proof by induction
Nov 20, 2020
answer
5
If $A$ and $B$ are sets, do $\mathcal{P}(A - B)$ and $\mathcal{P}(A) - \mathcal{P}(B)$ equal?
Jan 9, 2021
answer
4
Find all the integer solutions of $x^2-4y^2=1$
Jan 5, 2021
answer
4
If the square of an irrational number r is irrational, can it be equal to a + br, where both a and b are rational
Nov 10, 2020
answer
4
How to prove that, if two numbers are equal $\mod2$ and$\mod3$ ,they are equal$\mod 6 $?
Nov 9, 2020
answer
3
(2n + 1) + (2n) is odd?
Dec 2, 2020
question
3
Is this a bijection from $[0,1)$ to $(0,1)$?
Aug 2, 2019
answer
3
Prove that all members of a recursive sequence are coprime
Jan 6, 2021
answer
3
Why is my solution wrong to $\,99x \equiv 18 \mod 30$
Nov 16, 2020
answer
3
construct a sequence Sn that does not converge but its arithmetic mean converges to 0
Nov 4, 2020
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6
Why won't the top three strings change pitch
5
Does the equation $a^b+b^c+c^a=d^e$ have solutions in $\mathbb {N}$

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