Q8.If x1
, x2 , x3 as well as y1 , y 2 , y3
are in geometric progression with the same common ratio, then the points (x1
, y1 ), (x2 , y2 ), (x3 , y3)
are
Q9.If denotes the greatest integer less
than or equal to the real number under consideration and −1 ≤ x < 0, 0 ≤ y < 1, 1 ≤ z < 2 ,
then the value of the determinant is