1.

The acute angle between the lines \[y=3\] and \[y=\sqrt{3}x+9\] is [RPET 1984, 87, 88]

A.   \[{{30}^{o}}\]    
B.   \[{{60}^{o}}\]
C.   \[{{45}^{o}}\]    
D.   \[{{90}^{o}}\]
Answer» C.   \[{{45}^{o}}\]    


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