Mr.Math
 Name:
 V.
 School:
 Math undergrad
 About:
 It doesn't make sense to ask a man wearing a mask who he is!! (Mr.Math91@gmail.com)
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0 
Questions Answered

across:
Group Title
\[\begin{align}
x^1+y^1+z^1&=0\\
x^3+y^3+z^3&=3\\…
 updated 2 years ago
 13 replies
 6 Medals
Mathematics

FoolForMath:
Group Title
Fool's problem of the day,
If \( 4x^2+12xy+by^2+6x+2fy4=0 \) represents a pair of parallel lines, can you find the distance between them…
 updated 2 years ago
 5 replies
 3 Medals
Mathematics

badreferences:
Group Title
Okay, @Mr.Math , I'll post more problems. :(\[y_n=\int_0^1\int_0^1\ldots\int_0^1f\left(\frac{x_1+x_2+\ldots+x_n}{n}\right)\,dx_1\,dx_2\ldots…
 updated 3 years ago
 2 replies
 1 Medal
Mathematics

badreferences:
Group Title
Bored?\[f:\mathbb R\to\mathbb R\mid e^{x\int f\left(x\right)}=\int f\left(x\right)\]Find:\[\lim_{x\to\infty}\left(f\left(x\right)\right)^x\…
 updated 3 years ago
 24 replies
 5 Medals
Mathematics

KingGeorge:
Group Title
[UNKNOWN] Given a group G with infinite order, is it fast to find the inverse of any given element in G?
This question arose in one of my …
 updated 3 years ago
 8 replies
 2 Medals
Mathematics

carr099:
Group Title
integral (1+x^4+2x^2)^1/2
 updated 3 years ago
 5 replies
 3 Medals
Mathematics

badreferences:
Group Title
If \[\left\{a_n\right\}\mid n\geq 0,a_1=5,a_{n+1}=a_n^22,n\in\mathbb{R}\] find \[\lim_{n\rightarrow\infty}\frac{a_{n+1}}{a_1a_2\cdots a_n}\…
 updated 3 years ago
 5 replies
 1 Medal
Mathematics

Eherre1989:
Group Title
can someone solve this for me without changing the limits of integration?
…
 updated 3 years ago
 14 replies
 1 Medal
Mathematics

spyros:
Group Title
y''=(1+y'^2)/2y
 updated 3 years ago
 11 replies
 6 Medals
Mathematics

benjica:
Group Title
I am asked to prove, using mathematical induction, that \[3  (n^3  n) for all positive integers. I am having a difficult time relating the…
 updated 3 years ago
 11 replies
 2 Medals
Mathematics

dpaInc:
Group Title
Not so tough...
Every statement you can make is either true or false...
For example:
…
 updated 3 years ago
 27 replies
 2 Medals
Mathematics

Ishaan94:
Group Title
Let \(f(x)\) be a continuous function, whose first and second derivatives are continuous on \([0,2\pi]\) and \(f"(x) \ge 0 \:\: \forall \:x …
 updated 3 years ago
 40 replies
 6 Medals
Mathematics

T1ger5:
Group Title
Suppose f(x) is a function with domain (14,22) and range [5,11]. Find the domain of the following function: f(6x2)
 updated 3 years ago
 3 replies
 2 Medals
Mathematics

gayaznpanda94:
Group Title
how do you determine if a function is odd algebraically?
 updated 3 years ago
 3 replies
 2 Medals
Mathematics

yociyoci:
Group Title
Solve x^4+x^3+x^2+x+1 = 0 by hand
 updated 3 years ago
 14 replies
 4 Medals
Mathematics

christinaxxx:
Group Title
given the diagonal of a square, how do i determine its perimeter?
 updated 3 years ago
 2 replies
 1 Medal
Mathematics

yociyoci:
Group Title
Solve (x+1)(x+2)(x+3)(x+4)=1 by hand
 updated 3 years ago
 8 replies
 1 Medal
Mathematics

NotSObright:
Group Title
Help needed
\[\tan(x)=\frac{dy}{dx}(1 y \cos x)\]
General solution required.......
 updated 3 years ago
 14 replies
 2 Medals
Mathematics

Brandie:
Group Title
write in matrix form: x'=y, y'=x+4
my teacher has not gone over this, I need help
 updated 3 years ago
 19 replies
 2 Medals
Mathematics

NotSObright:
Group Title
The numbers x,y are chosen from {1,2,3........5N}.The probability that x^4y^4 is divisible by 5 is?
 updated 3 years ago
 13 replies
 2 Medals
Mathematics

sasogeek:
Group Title
what's the easiest way to determine whether the binary operation * is associative, if * is defined by \(x*y=\frac{x+y}{1+xy} \)
 updated 3 years ago
 9 replies
 2 Medals
Mathematics

NotSObright:
Group Title
Find sum of the series
\[\sum_{n=1}^{\infty}\frac{1}{n^2}\]
 updated 3 years ago
 23 replies
 4 Medals
Mathematics

plitter:
Group Title
How do I prove that \(n^3n\) is always divisible with 6? I sort of see the solution since \(n(n1)(n+1)\) will always have a part that is a…
 updated 3 years ago
 10 replies
 3 Medals
Mathematics

FoolForMath:
Group Title
Another fiasco of wolframalpha:
How many integer solutions are there for the inequation \[ x^2 +y^2 \le 25 \]?
…
 updated 3 years ago
 2 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
Evaluate
 updated 3 years ago
 99 replies
 5 Medals
Mathematics

mominanisar:
Group Title
prove that if n=ab then a<sqrt(n) and b<sqrt(n).
 updated 3 years ago
 1 reply
 1 Medal
Mathematics

FoolForMath:
Group Title
Just another cute problem,
How many eight digit numbers formed using the digit \( \{7,8,9\} \) has exactly three \( 7 \)'s ?
…
 updated 3 years ago
 2 replies
 No Medals Yet
Mathematics

moneybird:
Group Title
Suppse that \[f(n)=2n\lfloor \frac{1+\sqrt{8n7}}{2} \rfloor\] and \[g(n)=2n\lfloor \frac{1+\sqrt{8n7}}{2} \rfloor\] for each positive int…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

asdf34:
Group Title
Steps to factorize a^4+4b^4
 updated 3 years ago
 11 replies
 2 Medals
Mathematics

kj911:
Group Title
integrate:
ʃ [e^(1/2t)x] / (1/2t)^2 dx
 updated 3 years ago
 15 replies
 No Medals Yet
Mathematics

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