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Let `(alpha,beta)` be the focus of `x^(2) + 2xy +1 -y^(2) then 12beta + 4alpha` is equal to

Answer» Let parabola be `(x+y-k)^(2)=lambda(y-x+p)` comparing the above equation with parabola `x^(2)+2xy=2x+1-y^(2)`, we get lambda, k and p`


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