Find the angle between the planes 5x + 2y + 3z + 1 = 0 and (1, 1, -2). – McqOptions

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1.	Find the angle between the planes 5x + 2y + 3z + 1 = 0 and (1, 1, -2).
A.	30.82
B.	3.43
C.	11.23
D.	7.54
Answer» C. 11.23

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