Straight LineHard

Question

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

Options

A.3/2
B.5/2
C.7/2
D.9/2

Solution

4x + 2y + 4z + 5 = 0
4x + 2y + 4z - 16 = 0
⇒     

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