Categories > st-line > Distance between two lines > 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

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Question: 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


1) $c\cos \alpha $
2) $c{{\sin }^{2}}\alpha $
3) $c{{\sec }^{2}}\alpha $
4) $c{{\cos }^{2}}\alpha $
Solution: Explanation: No Explanation
Distance between two lines Perpendicular distance of the line from a point Position of point w.r.t. line

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