117,288 reputation
1093169
bio website
location Kolkata, India
age
visits member for 2 years, 7 months
seen 54 mins ago

2h
answered Existence of solution to Congruence relation $(x^2-2)(x^2-6)(x^2-3) \equiv 0\pmod p$
9h
comment Evaluating $\int_0^1 \frac {x^3}{\sqrt {4+x^2}}\,dx$
@Mathemagician1234, Whenever, we have $$\int x^{2n+1}(\sqrt{a^2+x^2})^m\ dx$$ we can try this
9h
comment Evaluating $\int_0^1 \frac {x^3}{\sqrt {4+x^2}}\,dx$
@XihaiLuo, See math.stackexchange.com/questions/1124550/…
9h
revised What is the integral of $\frac{\sqrt{x^2 +4}}{x}dx$
added 93 characters in body
9h
answered What is the integral of $\frac{\sqrt{x^2 +4}}{x}dx$
19h
answered How do I solve $\int_{0}^{\infty} \frac{\ln(x)}{1+x^{2}}\,dx$?
19h
answered How do I solve $\int_{0}^{\infty} \frac{\ln(x)}{1+x^{2}}\,dx$?
22h
answered How to solve: $\int _0 ^1 x (1+x)^n dx$?
22h
comment Finding an Expression for the Difference of Roots of the Quadratic Equation
@SamamaFahim, That assumption should be included
22h
comment Finding an Expression for the Difference of Roots of the Quadratic Equation
@SamamaFahim, The last part is the condition and the other condition as in the answer :$\alpha,\beta$ must be real
22h
comment Finding an Expression for the Difference of Roots of the Quadratic Equation
@SamamaFahim, When we will have $x=-x$
22h
revised Finding an Expression for the Difference of Roots of the Quadratic Equation
added 262 characters in body
22h
answered Finding an Expression for the Difference of Roots of the Quadratic Equation
22h
comment The divisibility of $a^p-1$ by $a-1$ and by $(a-1)^2$
@pranav, The operator is not $=,$ but $\equiv$ the following $p+1-2=p-1$ contain $d^2$ as a multiplicand
1d
answered The divisibility of $a^p-1$ by $a-1$ and by $(a-1)^2$
1d
comment Simple complex analysis inverse
Try this method math.stackexchange.com/questions/1121059/…
1d
comment Complex hyperbolic Trigonometry
@columbus8myhw, Agreed & the current version is also technically correct
1d
comment Complex hyperbolic Trigonometry
@phandaman, How about this?
1d
answered Complex hyperbolic Trigonometry
2d
comment Is there an obvious reason why $4^n+n^4$ cannot be prime for $n\ge 2$?
@barakmanos, Please find the edited version