Q. 154.0( 4 Votes )

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Answer :

Given:


Line ax – by + c = 0 and point (1, 1)


To prove:



Concept Used:


Distance of a point from a line.


Explanation:


The distance of the point (1, 1) from the straight line ax by + c = 0 is 1


1


a2 + b2 + c2 – 2ab + 2ac – 2bc = a2 + b2


ab + bc – ac


Dividing both the sides by abc, we get:



Hence proved.


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