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

The equation of a line are 5x-3 =15y+7=3-10z write the direction cosines of the line

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),(6)/(7),(2)/(7) (D) (-6)/(7),(-3)/(7),(2)/(7)

The equation of line are 5x-3=15y+7=3 10z.Write the direction cosines of the line.

If the projection of a line segment of the x,y and z-axes in 3-dimensional space are 2,3, and 6 respectively, then the length of the line segmetn is (A) 13 (B) 9 (C) 6 (D) 7

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/

What are the direction cosines of the line represented by 3x+y+2z=7,x+2y+3z=5 ?

The projection of the line segment joining (2,5,6) and (3,2,7) on the line with direction rations 2,1,-2 is

4(4)/(5)-:6(2)/(5)=?(3)/(4) (b) (5)/(7) (c) (5)/(8)(d)(7)/(11) (e) None of these

Find the the projection of the line segment joining the points : (I) (2,-3,0) (0,4,5) on the line with direction cosines lt (2)/(7) , (3)/(7), (-6)/(7) gt (ii) (1,2,3), (4,3,1) on the line with direction-ratios lt 3, -6, 2 gt .