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Question

Equation of a plane bisecting the angle between the planes 2x - y + 2z + 3 = 0 and 3x - 2y + 6z + 8 = 0 is
 


Your Answer
A
5x - y - 4z - 45 = 0
Correct Answer
B
5x - y - 4z - 3 = 0
Your Answer
C
23x + 13y + 32z - 45 = 0
Your Answer
D
23x - 13y + 32z - 5 = 0

Solution

The correct option is B 5x - y - 4z - 3 = 0
2xy+2z+322+(1)2+22=±3x2y+6z+832+(2)2+62
7(2xy+2z+3)=±3(3x2y+6z+8)
taking the + ve sign, and 23x13y+32z+45=0  taking the – ve sign.
5xy4z3=0

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