The projections of a vector on the three coordinate axis are `6, 3, 2` respectively. The direction cosines of the vector are (A) `6,-3,2` (B) `6/5,(-3)/5,2/5` (C) `6/7,(-3)/7,2/7` (D) `(-6)/7,(-3)/7,2/7`

The projection of a vector on the three coordinate axes are 6, -3, 2 , respectively. The direction cosines of the vector are

The direction cosines of the ray from (0,0,0) to (2,-3,6) are (A) -2/7,3/7,-6/7 (B) 2/7,37,6/7 (C) -2/7,-3/7,6/7 (D) 2/7,-3/7,6/

If projections of as line on x,y and z axes are 6,2 and 3 respectively, then directions cosines of the lines are (A) (6/2,2/7,3/7) (B) (3/5,5/7,6/7) (C) (1/7,2/7,3/7) (D) none of these

The direction cosines of a normal to the plane 2x-3y-6z+14=0 are (A) (2/7,(-3)/7,(-6)/7) (B) ((-2)/7,3/7,6/7) (C) ((-2)/7,(-3)/3,(-6)/7) (D) none of these

If the coordinates of one end of a diameter of a circle are (2,\ 3) and the coordinates of its centre are (-2,\ 5) , then the coordinates of the other end of the diameter are (a) (-6,\ 7) (b) (6,\ -7) (c) (6,\ 7) (d) (-6,\ -7)

Find the area of the pentagon whose vertices are (4, 3), (-5, 6), (0, -7), (3, -6), (-7, -2)

A B C is an isosceles triangle. If the coordinates of the base are B(1,3) and C(-2,7) , the coordinates of vertex A can be (1,6) (b) (-1/2,5) (5/6,6) (d) none of these

If the maximum and minimum values of y=(x^2-3x+c)/(x^2+3x+c) are 7 and 1/7 respectively then the value of c is equal to (A) 3 (B) 4 (C) 5 (D) 6

If the coordinate of one end of a diameter of the circle x^2+y^2+4x−8y+5=0 is (2,1), the coordinates of the other end is a) (-6,--7) b) (6,7) c) (-6,7) d) (7,-6)

The range of the following set of observations 2,3,5,9, 8, 7, 6, 5, 7, 4, 3 is