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[" 2.Write the coefficients of "x^(2)" i...

[" 2.Write the coefficients of "x^(2)" in each of the following: "],[[" (i) "2+x^(2)+x+9," (ii) "2-x^(2)+x^(3)=-1],[" (iii) "(pi)/(2)x^(2)+x=(pi)/(2)," (iv) "sqrt(2x-1)=0]]

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