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The equation of the ellipse whose axes a...

The equation of the ellipse whose axes are coincident with the coordinates axes and which touches the straight lines `3x-2y-20=0` and `x+6y-20=0` is (a)`(x^2)/(40)+(y^2)/(10)=1` (b) `(x^2)/5+(y^2)/8=1` (c)`(x^2)/(10)+(y^2)/(40)=1` (d) `(x^2)/(40)+(y^2)/(30)=1`

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