(a+x)/(1-a*x) + (a-x)/(1+a*x) = b
Find Z^(-1) (z(z+1)/(z-1)^3 )using Cauchy’s residues theorem
tanx^{tanx}=\frac{\sqrt{2}}{2}
1/11 half of
if cot alpha + cot theta = 0 then. alpha is
7x+4y-3x+13-7y+5=
find a. ab/c= d
2x(x-2)=3(x+10)
82X+246