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If AA h in R - {0}, two distinct tangents can be drawn from the points (2+h,3h-1) to the curve y=x^(3)-6x^(2) - a+ bx then (a)/(b) is equal to "_____" |
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Answer» <P> Let `P` be the POINT of inflection So `P-=(2,2b-a-16)` Equation of tangent line passing through inflection Point: `y=(b-12)x-a+8`…….(1) Let `Q-=(2+h,3h-1)` Locus of `Q:3x-y=7`…….(2) From equation (1) and (2) we GET ! So, `a=15` adn `b=15`
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