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)`

If the directions cosines of a straight line are ltk,k,kgt then

If the direction cosines of a line are k, k and k, then :

If the direction cosines of a line are k,(1)/(2),0 then k =

If the direction cosines of a line are k,k,k then

If the direction cosines of a line are 1/sqrt(3), 1/(2sqrt(2)), k , then the value of 48k=

If int_0^1 xe^(x^2) dx=k int_0^1 e^(x^2) dx , then (A) kgt1 (B) 0ltklt1 (C) k=1 (D) none of these

If the points (1, 1), (-1, -1) and (-sqrt(3),k) are vertices of a equilateral triangle then the value of k will be : (a)1 (b)-1 (c) sqrt3 (d) -sqrt3

Four distinct points (k, 2k), (2, 0), (0, 2) and (0,0) lie on a circle for : (A) k = 0 (B) k = 6/5 (C) k = 1 (D) k = -1

Four points on a circle are (0,1), (1,0), (0,0), (2k, 3k) find k:

If the cosine of the angle between the lines with direction ratios 1, -1, 2 and 0, 1, k is (sqrt(3))/(2) , then k =