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Given the definition of Big-O: given functions f(x) and g(x), we say f(x) is O(g(x)) if and only there exist constants C and k, so that for all x>k,f(x)Cg(x), answer the following question. Suppose f(x)=21x2+2x+1. and g(x)=x2. Find all the values of C that shows f(x) is O(g(x)) when k=1. 1/2 1 2 3 4 5