circles - find the parallel tangents..

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find the eqn. of those tangents to the circle x² + y² - 2x - 4y - 4 = 0 which are parallel to the line 3x - 4y - 1 = 0

#Mathematics #Co-ordinate Geometry

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Manish Shankar ·2013-05-23 23:16:28

lets assume the tangent to be: 3x-4y=c

then we have distance from centre to this line is equal to radius.

apply this and get the value of c

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rahul ·2013-05-29 08:42:18

Thank you ... yes..
well one bad soln.. is putting y = (3x - c)/4 into the eqn. of the circle and putting D = 0 nd finally c... well urs is the best one... !!

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circles - find the parallel tangents..

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