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Jul
22
answered limit of a rational function, $\lim _{x\to 1} \frac{x^3 +x-2}{1-x}$
Jul
22
comment How find the polynomial whose roots are $\frac{{a^2 }} {{2a^2 + bc}},\frac{{b^2 }} {{2b^2 + ca}},\frac{{c^2 }} {{2c^2 + ab}}$?
@piteer, $$y^3-P'y^2+Q'y-R'=0$$
Jul
22
answered How find the polynomial whose roots are $\frac{{a^2 }} {{2a^2 + bc}},\frac{{b^2 }} {{2b^2 + ca}},\frac{{c^2 }} {{2c^2 + ab}}$?
Jul
22
answered What is remainder when $5^6 - 3^6$ is divided by $2^3$ (method)
Jul
22
answered Find all solutions of the given equation $\sec^2 θ − 4 = 0$. Let $k$ be any integer.
Jul
22
answered How find the minimum of the value $n$ such$105\mid \left(9^{p^2}-29^p+n\right)$
Jul
22
awarded  complex-analysis
Jul
21
comment Proving arithmetic series by induction
@hohner, $$\frac n2[2a+(n-1)d]+a+nd=an+d\frac n2(n-1)+a+nd=a(n+1)+d[\frac n2(n-1)+n]=?$$
Jul
21
comment Probability of a year which is not a leap year
@HenningMakholm, Can you please share time of definition of share any reference ?
Jul
21
answered Proving arithmetic series by induction
Jul
21
answered The complex equation
Jul
21
comment Family of lines $\sin\alpha x +\sin\beta y +\sin\gamma =0$
@sultan, My pleasure. Good Question, though
Jul
21
answered Probability of a year which is not a leap year
Jul
21
comment Find value of $x$ for: $(1/3)(1-x) \geq 2(x-3)$
@user160137, For $$A(x-a)=B(x-b)$$ we can not just check for $x=a,b$
Jul
21
comment Family of lines $\sin\alpha x +\sin\beta y +\sin\gamma =0$
@user108258, Form my last step, $$\sin(-1\cdot\alpha)+\sin(1\cdot\beta)+\sin\gamma=0$$
Jul
21
answered Family of lines $\sin\alpha x +\sin\beta y +\sin\gamma =0$
Jul
21
comment Family of lines $\sin\alpha x +\sin\beta y +\sin\gamma =0$
Why is the sum $\pi?$
Jul
21
comment Number of non zero integer values of $k$ for which the points ($k,k^2)$ lies inside the triangle formed by the given three lines
Use the idea from math.stackexchange.com/questions/190111/…
Jul
21
answered Find value of $x$ for: $(1/3)(1-x) \geq 2(x-3)$
Jul
21
answered How to find the period of the sum of two trigonometric functions