[" Let "L" be the line of intersection of "],[" the planes "2x+3y+z=1" and "],[x+3y+2z=2." If "L" makes an "],[" angle "alpha" with the positive "x" -axis,"],[" then cos "alpha" equals "]

Let L be the line of intersection of the planes 2x + 3y + z =1 and x + 3y + 2z =2. If L makes an angle alpha, whith the positive x-axis, then cos alpha equals

Let L be the line of intersection of the planes 2x+3y+z=1 and x+3y+2z=2 . If L makes an angle alpha with the positive X=axis, then cosalpha equals

Let L be the line of intersection of the planes 2x+3y+z=1 and x+3y+2z=2 . If L makes an angle alpha with the positive X=axis, then cosalpha equals

Let L be the line of intersection of the planes 2x""+""3y""+""z""=""1 and x""+""3y""+""2z""=""2 . If L makes an angles alpha with the positive x-axis, then cos alpha equals

Let L be the line of intersection of the planes 2x""+""3y""+""z""=""1 and x""+""3y""+""2z""=""2 . If L makes an angles alpha with the positive x-axis, then cos alpha equals

Let L be the line of intersection of the planes 2x""+""3y""+""z""=""1 and x""+""3y""+""2z""=""2 . If L makes an angles alpha with the positive x-axis, then cos alpha equals

Let L.be the line of intersection of the planes 2x+3y+z=1 and x+3y+2z=2. If L makes an angles alphawith the positive x-axis, then cos alpha equals

Let L be the line of intersection of the planes 2x""+""3y""+""z""=""1 and x""+""3y""+""2z""=""2 . If L makes an angles alpha with the positive x-axis, then cos alpha equals a. 1/(sqrt(3)) b. 1/2 c. 1 d. 1/(sqrt(2))