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If `S=0` is the equation of the hyperbola `x^2+4x y+3y^2-4x+2y+1=0` , then the value of `K` for which `S+K=0` represents its asymptotes is (a)`20` (b) `-16` (c) `-22` (d) 18

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CENGAGE ENGLISH-CONIC SECTIONS-All Questions
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