lab bhattacharjee
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 Apr16 comment Solve $\left(\sqrt[3]{4-\sqrt{15}}\right)^x+\left(\sqrt[3]{4+\sqrt{15}}\right)^x=8$ Distant relative : math.stackexchange.com/questions/384090/… Apr16 answered Limit of a set of fractions Apr16 comment Let a be a positive number. Then $\lim_{n \to \infty}[\frac{1}{a+n}+\frac{1}{2a+n}+\cdots +\frac{1}{na+n}]$ Apr15 comment Evaluating: $I_1 = \sin^{-1} \left(\sqrt{\frac{x}{x+a}}\;\right)$ Apr15 comment Calculate isocele triangle dimensions from angles @Neovea, Which height, presumably from the base, right? Then can you use my hint? Apr15 comment Calculate isocele triangle dimensions from angles Draw a perpendicular to the base which will be bisected by the perpendicular Apr15 comment Number of solutions of the congruence $x^p \equiv x\pmod p$ Apr15 comment to find the value of angle A in the given equation @TheViper, $$2\cos A+1=0\iff\cos A=-\dfrac12=\cos ?$$ Apr15 answered to find the value of angle A in the given equation Apr15 comment How to sum $\sum_{k=1}^n (k+1)(k)(k-1)$ @Jean-ClaudeArbaut, Sorry for some reason, that eluded me. Please find the updated version. Apr15 revised How to sum $\sum_{k=1}^n (k+1)(k)(k-1)$ added 317 characters in body Apr15 answered How to sum $\sum_{k=1}^n (k+1)(k)(k-1)$ Apr15 answered Edited-How can I solve polynomial recurrences like $f(n+1)=\frac{2f(n)}{f(n)+1}$ Apr15 answered Find the MacLaurin Series for $f(x)=\ln(√81-x^2)$ Apr15 comment Sine Sum : Inverse Circular Function Proof @SanchayanDutta, Related : math.stackexchange.com/questions/672575/… Apr14 answered If the equation $|x^2+4x+3|-mx+2m=0$ has exactly three solutions then find value of m. Apr14 answered using Fermat's little Theorem to find the least residue of $5^{38}\ mod\ 13$ Apr13 answered simplifiying an expression $(n + 1)! − 1 + (n + 1) \cdot (n + 1)!$ Apr13 answered Find triangle angle knowing side length change and angle change Apr13 answered how to solve $\sin\theta+\sqrt{3}\cos\theta=-\sqrt{3}\;$ for $\;\theta\;$ when $\;0^\circ\leq\theta<360^\circ$