The direction cosines of x-axis are (A) 0,0,1 (B) 1,0,0 (C) 0,1,0 (D) 0,1,1

The direction cosines of any normal to the xy-plane are (A) 1,0,0 (B) 0,1,0 (C) 1,1,0 (D) 0,01

a^0 is equal to.... (A) 0 (B) 1 (C) -1 (D) a

If the direction cosines of a line are 1/c,1/c,1/c rthen (A) c.0 (B) 0ltclt1 (C) c=+-sqrt(3) (D) cgt2

The direction cosines of line joining (1,-1,1) and (-1,1,1) are (A) 2,-2,0 (B) 1,-1,0 (C) 1/sqrt(2)-1/sqrt(2),0 (D) none of these

If I=int_0^1 (xdx)/(8+x^3) then the smallest interval in which I lies is (A) (0,1/8) (B) (0,1/9) (C) (0,1/10) (D) (0,1/7)

The matrix of the transformation reflection in the line x+y=0 is (A) [(-1,0),(0,-1)] (B) [(1,0),(0,-1)] (C) [(0,1),(1,0)] (D) [(0,-1),(-1,0)]

If A=[(0,1),(1,0)] then A^4 is (A) [(0,0),(1,1)] (B) [(1,1),(0,0)] (C) [(0,1),(1,0)] (D) [(1,0),(0,1)]

Write the direction-cosines of the line joining the points (1,0,0) and (0,1,1).

The abscissa and ordinate of the origin are (a) (0, 0) (b) (1, 0) (c) (0, 1) (d) (1, 1)

If the direction cosines of a straighat line are k,k,k the (A) kgt0 (B) 0ltklt1 (C) k=1 (D) k=1/sqrt(3) or -1/sqrt(3)