When two planes intersect, the angle between the planes is defined as the non-obtuse angle between their normals. If
N_(1)and
N_(2)are the normals of two intersecting planes, the angle
\theta between these planes is given by
cos(\theta )=(|N_(1)*N_(2)|)/(||N_(1)||||N_(2)||),0<=\theta <=(\pi )/(2)Find the angle
\theta between two intersecting planes
3x-2y+z=7and
2x-3y+4z=7. (Express numbers in exact form. Use symbolic notation and fractions where needed.)
\theta =