If `A=[(3,1),(-1,2)]` then `A^2=` (A) `[(8,-5),(-5,3)]` (B) `[(8,-5),(5,3)]` (C) `[(8,-5),(-5,-3)]` (D) `[(8,5),(-5,3)]`

If A=[1,5,-2,3,-8] , then A A' = ?

If A=[[-5,-8,0],[3,5,0],[1,2,-1]], then A' is

Simplify : (i) (5/8)^(-7)×\ (8/5)^(-5) (ii) ((-2)/3)^(-2)×\ (4/5)^(-3)

If 2(2n+5)=3\ (3n-10), then n= (a)5 (b) 3 (c)7 (d) 8

Show that the following points are collinear: (i) A(2, -2), B(-3, 8) and C(-1, 4) (ii) A(-5, 1), B(5, 5) and C(10, 7) (iii) A(5, 1), B(1, -1) and C(11, 4) (iv) A(8, 1), B(3, -4) and C(2, -5)