Identify any points of discontinuity for the following functions. Indicate if the discontinuity is removable or nonremovable. c) f(x)=1/x^2+2 d) f(x)=x-5/x^2-9x+20 e) f(x)=3-2x-x^2 f) f(x)={-2x+3, x<1}           {x^2, x>=1} g) f(x)= {1/2x+1, x<=2}             {3-x, x>2} h) f(x)={x^2-4, x<=0}            {3x+1, x>0}

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A:

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