1.

The line passing through \[(-1,\pi /2)\] and perpendicular to \[\sqrt{3}\sin \theta +2\cos \theta =\frac{4}{r}\] is                                     [EAMCET 2003]

A. \[2=\sqrt{3}\,r\cos \theta -2\,r\sin \theta \]
B. \[5=-2\sqrt{3}\,r\sin \theta +4\,r\cos \theta \]
C. \[2=\sqrt{3}\,r\cos \theta +2\,r\cos \theta \]
D. \[5=2\sqrt{3}\,r\sin \theta +4\,r\cos \theta \]
Answer» B. \[5=-2\sqrt{3}\,r\sin \theta +4\,r\cos \theta \]


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