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Mathematics 18 Online
OpenStudy (anonymous):

The equation of the line passing through the intersection of lines x-3y+1=0 and 2x+5y-9=0 and at a distance of sqrt5 from the orgin?

hartnn (hartnn):

find intersection first

OpenStudy (anonymous):

P(1,2) is it correct...

OpenStudy (anonymous):

Sorry P(2,1)

OpenStudy (anonymous):

|dw:1350302791093:dw|

OpenStudy (anonymous):

Its like finding equation of that two tangents to the circle.

OpenStudy (amistre64):

isnt 2,1 a distance of sqrt(5) from origin?

OpenStudy (anonymous):

Yup..)

OpenStudy (amistre64):

it all started to come together :) good one

OpenStudy (anonymous):

Then there will be only one equation.

OpenStudy (anonymous):

First find the equation of the circle with centre origin and radius root5

OpenStudy (anonymous):

Solving these two x-3y+1=0 2x+5y-9=0 x=2 y=1

OpenStudy (anonymous):

Can u?

OpenStudy (anonymous):

Nop....@sauravshakya i have nt Studied...Equation of circles and Tangents.....Etc....

OpenStudy (anonymous):

Now, u know distance between (2,1) and (0,0) is also root5

OpenStudy (anonymous):

Yup......

OpenStudy (anonymous):

|dw:1350303562139:dw|

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