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[" 22.If "f:R rarr R,f(x)=(x^(2)+ax+1)/(...

[" 22.If "f:R rarr R,f(x)=(x^(2)+ax+1)/(x^(2)+x+1)," then the complete set of values of "'a'" such that "f(x)" is onto is: "],[[" (a) "(-oo,oo)," (b) "(-oo,0)," (c) "(0,oo)," (d) not possible "]]

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