Angle between two planes is defined to be the angle between their normals which 0...

   

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Angle between two planes is Ө defined to be the angle between their normals which 0 ≤ 0 < π (see the satisfies figure). Consider two planes with equations 2y + z = 14 and 2x + z = −2. For these planes and angle between them, we have cos(0) = Angle between two planes is Ө defined to be the angle between their normals which 0 ≤ 0 < π (see the satisfies figure). Consider two planes with equations 2y + z = 14 and 2x + z = −2. For these planes and angle between them, we have cos(0) =