lab bhattacharjee

28,648 reputation

12348

bio	website
	location	Kolkata, India
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visits	member for	11 months
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http://in.linkedin.com/pub/lab-bhattacharjee/13/190/641

	28,648 reputation	bio	website		visits	member for	11 months
12348 badges		location	Kolkata, India		seen	2 hours ago

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2h	revised	If $x^2\equiv 1 \pmod{n}$ and $x \not\equiv \pm 1 \pmod{n}$, then either $\gcd(x-1,n)$ or $\gcd(x+1,n)$ is a nontrivial factor of n deleted 22 characters in body
3h	revised	Integration using summation added 95 characters in body
14h	revised	Find the modular residue of this product.. added 197 characters in body
14h	revised	Find the modular residue of this product.. added 197 characters in body
15h	revised	Show that no number of the form 8k + 3 or 8k + 7 can be written in the form $a^2 +5b^2$ deleted 305 characters in body
1d	revised	Using a definite integral, to create a specific recurrence relation. added 174 characters in body
1d	revised	Show that no number of the form 8k + 3 or 8k + 7 can be written in the form $a^2 +5b^2$ added 30 characters in body
1d	revised	Using a definite integral, to create a specific recurrence relation. added 26 characters in body
1d	revised	Using a definite integral, to create a specific recurrence relation. formatted
1d	revised	Find $a,b,c \in \mathbb {Q}$ added 248 characters in body
1d	revised	limit of series exponential added 7 characters in body
1d	revised	Number Theory $8 \mid (a^2-b^2)$ for $a$ and $b$ both odd added 2 characters in body
1d	revised	Which methods to use to integrate $\int{\frac{x^4 + 1}{x^2 +1}}\, dx$ added 1176 characters in body
2d	revised	How does one evaluate $\sqrt{x + y} + \sqrt{x - y}$? added 1414 characters in body
2d	revised	How does one evaluate $\sqrt{x + y} + \sqrt{x - y}$? added 84 characters in body
May 19	revised	Help evaluating $\int_0^\infty \frac{1}{x^{1/2}(x+1)}dx$ added 536 characters in body
May 19	revised	Prove divisibility using linear congruences added 185 characters in body
May 18	revised	A question about an inequality added 60 characters in body
May 18	revised	Solve a polynomial involving geometric progression? added 81 characters in body
May 18	revised	Closed form for $\sum^{\infty}_{{i=n}}ix^{i-1}$ added 618 characters in body