If the line of intersection of the planes 2 x+3 y+z=1 and x+3 y+2 z=2 makes an angle \alpha with the positive x -axis, then \cos \alpha= [AP EAPCET 22 May 2025 S2]

Three Dimensional Geometry

Section: Mathematics

Question : 11 of 58

Marks: +1, -0

If the line of intersection of the planes 2x+3y+z=1 and x+3y+2z=2 makes an angle α with the positive x -axis, then cos‌α=

[AP EAPCET 22 May 2025 S2]

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