find the length of the chord 3x-y+9=0

of the circle x^2+y^2=5

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- August 20th 2009, 12:12 AM #1

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- August 20th 2009, 12:23 AM #2

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One can see a very dull method here.

Solve the two equations for the points of intersection,

Therefore,

so discriminant of this equation=729-760< 0

i.e. the line doesn't meet the given circle at all

I think you've made a typing mistake in your question.

- August 20th 2009, 12:23 AM #3