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Question

Distance between two parallel planes 2x + y + 2z = 8 and 4x + 2y + 4z + 5 = 0 is
 



Your Answer
A

32

Your Answer
B

52

Correct Answer
C

72

Your Answer
D

92


Solution

The correct option is C

72


Given planes are
2x+y+2z8=0 and 2x+y+2z+52=0 Distance between two planes=|c1c2|a2+b2+c2=85222+12+22=2123=72
 

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