" (ii) "-1.0-1.5-2.0-2.5-....=-27

If (i) -1.0 , -1.5, -2.0, -2.5 , ……… and (ii) -1, -3, -9, -27, ……. are two progressions, then which of them is a Geometric Progression?

Find out a and d for each of the following Aps: 2.5 , 1.5, 0.5,-0.5 ......

Find the missing number in the given series. -2.7, -2.1, -1.5, -0.9, -0.3,?

If A={:[(3,2),(0,1)]:}" then:(A^(-1))^(3)= ...a) (1)/(27)[(1,-26),(0,27)] b) (1)/(27)[(-1,26),(0,27)] c) (1)/(27)[(1,-26),(0,-27)] d) (1)/(27)[(-1,-26),(0,-27)]

Let A=[[5,0-1,0]] and B=[[0,1-1,0]]. If 4A+5B-C=0 then C is (A) [[5,25-1,0]] (B) [[2,5-1,0]] (C) [[5,-10,25]] (D) none of these

The inverse of the matrix [(1,1,1),(1,0,2),(3,1,1)] is a) (1)/(4)[(-2,0,2),(5,-1,2),(1,-1,-2)] b) (1)/(4)[(-2,0,2),(5,-2,-1),(1,2,-1)] c) (1)/(4)[(-2,0,2),(2,5,-1),(-2,-1,1)] d) (1)/(4)[(-2,0,2),(5,-1,1),(1,-2,-1)]

Simplify: [(2 10/27))^(-2/3) ÷ (11 1/9))^(-0.5)] +[(6.25)^(0.5) ÷ (-4)^(-1)]

Solve for x : (81)^((3)/(4))-((1)/(32))^(-(2)/(5))+x((1)/(2))^(-1).2^(0) = 27

if A=[{:(3,-1,2),(0,5,-3),(1,-2,7):}]and B=[{:(1,0,0),(0,1,0),(0,0,1):}], find whether AB=BA or Not .