Find the angle between x + 2y + 7z + 2 = 0 and 4x + 4y + z + 2 = 0. – McqOptions

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1.	Find the angle between x + 2y + 7z + 2 = 0 and 4x + 4y + z + 2 = 0.
A.	69.69
B.	84.32
C.	63.25
D.	83.25
Answer» D. 83.25

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