of `0 < x < 90^@` and `cosx=3/sqrt10` then the value of `log_10 sinx+log_10 cosx+log_10 tanx` is

If A = [{:( 0,0,0),(0,0,0) ,(0,1,0):}] ,then A is

If A=[[a, 0, 0], [0, a, 0], [0, 0, a]] , then |A||adjA|=

If A=[[a, 0, 0], [0, a, 0], [0, 0, a]] , then |adjA|=

If A = [{:( 0,0,0),( 1,0,0),(0,1,0):}] ,then

The inverse of the matrix [(0,0,1),(0,1,0),(1,0,0)] is (A) [(0,0,1),(0,1,0),(1,0,0)] (B) [(0,0,-1),(0,-1,0),(-1,0,0)] (C) [(1,0,0),(0,1,0),(0,0,1)] (D) [(1/2,0,0),(0,1/2,0),(0,0,1/2)]

The inverse of the matrix [(0,0,1),(0,1,0),(1,0,0)] is (A) [(0,0,1),(0,1,0),(1,0,0)] (B) [(0,0,-1),(0,-1,0),(-1,0,0)] (C) [(1,0,0),(0,1,0),(0,0,1)] (D) [(1/2,0,0),(0,1/2,0),(0,0,1/2)]

What are corrdinates of the point equidistant from the points (a,0,0),(0,a,0),(0,0,a) and (0,0,0) ?