1.

The angle between the straight lines \[x-y\sqrt{3}=5\] and \[\sqrt{3x}+y=7\]is         [MP PET 2003]

A.            \[{{90}^{o}}\]
B.            \[{{60}^{o}}\]
C.            \[{{75}^{o}}\]
D.            \[{{30}^{o}}\]
Answer» B.            \[{{60}^{o}}\]


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