( D= left| begin array ccc gamma & beta & alpha gamma^ 2 & beta^ 2 & alpha^ 2 gamma^ 3 -1 & beta^ 3 -1 & alpha^ 3 -1 end array right| ) এবং ( left begin array c -2 y+3 z=13 2 x-z=-5 x-5 y+5 z=24 end array right ldots ldots ) (i)