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Mathematics
Pratyush Yadav's user avatar
Pratyush Yadav's user avatar
Pratyush Yadav's user avatar
Pratyush Yadav
  • Member for 8 years, 5 months
  • Last seen more than 2 years ago
  • India
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Mathematics, computers, and Android : pretty much sums up my life.

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21
4 cards are drawn from a pack without replacement. What is the probability of getting all 4 from different suits?
Apr 17, 2016
12
'Bee flying between two trains' problem
May 30, 2016
9
Find the limit $\lim_{n\to\infty}\left(\sqrt{n^2+n+1}-\left\lfloor\sqrt{n^2+n+1}\right\rfloor\right)$ [duplicate]
Feb 8, 2016
5
What is $\sum_{n=1}^{\infty}\left(\frac i6\right)^n$ where $i=\sqrt{-1}$?
Aug 22, 2016
4
All zeroes of monic cubic $x^3+ax^2+bx+c$ are negative reals and $a\lt3$. Range of $b+c$?
Jan 31, 2016
3
Why is the direction of propagation of $y = \sin(kx - \omega t) \quad \omega , k \gt 0$ toward $+X$ axis?
Mar 23, 2016
2
Number of ways to distribute 4 different objects and 5 identical objects in 3 separate groups?
Feb 1, 2016
2
$A(1,1,1)$, $B(2,1,2)$, $C(3,2,1)$ and $D(2,3,2)$ form a tetrahedron. If $ABC$ is the base, then what is the height?
Apr 19, 2016
2
$(x-1)(y-2)=5$ and $(x-1)^2+(y+2)^2=r^2$ intersect at four points $A,B,C,D$. Centroid of $\Delta ABC$ lies on $y=3x-4$, then the locus of $D$
May 1, 2016
2
Is this function increasing at $x = 2$?
May 5, 2016
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Is it okay if I only ask and read, and not answer