The length of perpendicular from the point \[(a\cos \alpha ,a\sin \alpha )\] upon the straight line \[y=x\tan \alpha +c,\] \[c>0\] is [MP PET 2004]

The length of perpendicular from the point \[(a\cos \alpha ,a\sin \alp

1.	The length of perpendicular from the point \[(a\cos \alpha ,a\sin \alpha )\] upon the straight line \[y=x\tan \alpha +c,\] \[c>0\] is [MP PET 2004]
A.	\[c\cos \alpha \]
B.	\[c{{\sin }^{2}}\alpha \]
C.	\[c{{\sec }^{2}}\alpha \]
D.	\[c{{\cos }^{2}}\alpha \]
Answer» B. \[c{{\sin }^{2}}\alpha \]

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The length of perpendicular from the point \[(a\cos \alpha ,a\sin \alpha )\] upon the straight line \[y=x\tan \alpha +c,\] \[c>0\] is [MP PET 2004]

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