Show that the origin lies in the interior of the acute angle between planes x + 2y + 2z = 9 and 4x - 3y + 12z + 13 = 0. Find the equation of bisector of the acute angle.

Show that the origin lies in the acute angles between the planes x + 2y + 2z – 9 = 0 and 4x – 3y + 12z + 13 = 0. Find the planes bisecting the angles between them and point out the one which bisects the acute angle.

The acute angle between the two planes x + y + 2z = 3 and 3x - 2y + 2z = 7 is …….

Find the bisector of acute angle between the lines x+y - 3 = 0 and 7x - y + 5 = 0

Find the bisector of acute angle between the lines x+y - 3 = 0 and 7x - y + 5 = 0

Find the bisector of acute angle between the lines x+y - 3 = 0 and 7x - y + 5 = 0

The bisector of the acute angle formed between the lines 4x - 3y + 7 = 0 and 3x - 4y + 14 = 0 has the equation