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2. (30 points) Rank the following functions by order of growth. If two or more are of the same order (f(n) and g(n) are in the same class if and only if f(n)=(g(n))), indicate which. 2. ( 30 points) Rank the following functions by order of growth. If two or more are of the same order (f(n) and g(n) are in the same class if and only if f(n)=(g(n))), indicate which. 2.71n>2n>2n4 555n5n3+n2,n5+23, they are both O(n5) 555n5n3+n2=n5+23=(n5) n3+ where 0lg(lgn)