lab bhattacharjee
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# 19 Accepts

 Dec26 accepted Relationship between complex number and vectors Nov25 accepted Geometrico-Harmonic Progression Oct7 accepted Regarding one form of potential primes Sep26 accepted Prove/disprove $\sum x^2y^2 \ge \sum x^3y$ Sep19 accepted more than one minimum value? Sep2 accepted Is $\tan(\pi/2)$ undefined or infinity? Aug29 accepted Minimize the sum of tangents when sum of angles are constants Aug21 accepted When does $n$ divide $a^d+1$? Aug14 accepted Solutions of $\phi(x)=n$ for a given n. Aug12 accepted If $(m_1,m_2)=D$, $(a,m_1)=d_1$, $(b,m_2)=d_2$, then $(am_2+bm_1, m_1m_2)=?$ Aug12 accepted Is the ten's digit even in any power of 20n+c, where c is an odd digit? Jul25 accepted Largest positive integer $k$ such that $\mu(n+r)=0$ for all $1\leq r\leq k$ Jul24 accepted What values can $n$ assume, when $z^2+n= x^2+y^2$? Jul23 accepted Updates on Lehmer's Totient Problem Jul22 accepted Some doubt on Linear Diophantine equation Jul22 accepted Application of Pell's equation Jul22 accepted Can two collections of different size have same A.M., G.M. and H.M? Jul22 accepted Does $k$-th power of $p$ divide ${}_n\!C_r$ if the previous divides $n$? Jul22 accepted Recursive digit-sum