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 Apr 16 comment Using hensel's lemma Apr 16 answered Proving a trigonometric identity: Apr 16 revised Factorial series with ratio test inconclusive edited body Apr 16 comment Factorial series with ratio test inconclusive @Vitto, Thanks for yours observation. Rectified the typo. Apr 16 revised Factorial series with ratio test inconclusive deleted 2 characters in body Apr 16 answered Factorial series with ratio test inconclusive Apr 16 answered Should I use L'Hôpital Apr 16 comment Problem involving binomial coefficients where p+q=1 @KaranSingh, Please find the updated answer Apr 16 revised Problem involving binomial coefficients where p+q=1 added 341 characters in body Apr 16 answered Problem involving binomial coefficients where p+q=1 Apr 16 answered Evaluation of $\int_{0}^{\frac{1}{2}}\frac{\ln(1-x)}{2x^2-2x+1}dx$ Apr 15 comment Determination of $(a,b)$ in Definite Integral. Clearly $a=1$ is a solution. But not sure about the uniqueness Apr 15 answered Evaluate the following integral Apr 15 answered value of $\tan(A)$ Apr 15 comment Doubt in solving $\sec^{-1}\sqrt{5}+\csc^{-1}\frac{\sqrt{10}}{3}+\cot^{-1}\frac{1}{x}=\pi$ @Umeshshankar, Yes, then you need to deal with one Trigonometric ratio. Else you need to use math.stackexchange.com/questions/672575/… Apr 15 answered Doubt in solving $\sec^{-1}\sqrt{5}+\csc^{-1}\frac{\sqrt{10}}{3}+\cot^{-1}\frac{1}{x}=\pi$ Apr 15 comment Determination of $(a,b)$ in Definite Integral. What is the source of the nice problem? Apr 14 answered Why does this limit of hyperbolic cosines equate to a parabola? Apr 14 comment Show that if $\frac{a}{b} < \frac{c}{d}$, then $\frac{a}{b} < \frac{a+c}{b+d} < \frac{c}{d}$ Find $$\dfrac{a+b}{c+d}-\dfrac ab$$ and $$\dfrac cd-\dfrac{a+b}{c+d}$$ Apr 14 comment How to rigourously prove that any integer divisible by $3$ can be written as a sum of four cubes? What is the source of the problem? See also: math.stackexchange.com/questions/430910/…