After taking |A|=0, I am getting x^{3}+1=0 and not x^{3}-1=0. Is it x^{3}+1=0 or x^{3}-1=0?
Ya, i missed the '-' in multiplying 2nd parameter.
BTW, expansion of (x^{3}-1) is (x-1)(x^{2}+x+1), so x=1, and not -1, for real values of x.
23240 Points
17038 Points
7096 Points
6008 Points
5430 Points
4928 Points
4762 Points
4278 Points
3954 Points
3744 Points
Gatecse
X->YZ , Y->XZ , ...