If the slope of one line is double the slope of another line and thecombined equation of the pair of lines is `((x^2)/a)+((2x y)/h)+((y^2)/b)=0`, then find the ratio `a b: h^2dot`

If the slope of one line is double the slope of another line and theco

1.	If the slope of one line is double the slope of another line and thecombined equation of the pair of lines is `((x^2)/a)+((2x y)/h)+((y^2)/b)=0`, then find the ratio `a b: h^2dot`
Answer» Correct Answer - `9 : 8` If m and 2m are the slopes , then `m+2m=-(2//h)/(1//h)=-(2b)/(h)` and `mxx2m=(1//a)/(1//b)=(b)/(a)` Eliminating m, we get `2(-(2b)/(3h))^(2)=(b)/(a)` or `(ab)/(h^(2))=(9)/(8)`

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