If \( x^{2}+p x y+q y^{2}+r x-s y+11=0 \) is the eqaution of the hy... VIDEO
If \( x^{2}+p x y+q y^{2}+r x-s y+11=0 \) is the eqaution of the hyperbola whose one focus is \( (-1,1) \), eccentricity \( =3 \) and the equation of the corresponding directrix is \( x-y+3=0 \), then the value of 's' is :
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