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[" Mock Test-8"],[" Let "alpha& beta" be...

[" Mock Test-8"],[" Let "alpha& beta" be the distinct roots of "ax^(2)+bx+c=0," then "lim_(x rarr alpha)(1-cos(ax^(2)+bx+c))/((x-alpha)^(2))" is equal to "],[[" (A) "(a^(2))/(2)(alpha-beta)^(2)," (B) "0," (C) "-(a^(2))/(2)(alpha-beta)^(2)," (D) "(1)/(2)(alpha-beta)^(2)]]

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