For each of the following two functions f(n), determine a simple function g(n)

such that f(n) = Θ(g(n))

• f(n)=(n5 −13n4 +n2logn)(logn+25).

• f(n)=(2n +n2)(n3 +3n).

More problems after this is solved.

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- Nov 17th 2010, 04:48 PMrandombuddyDiscrete Math Problem
For each of the following two functions f(n), determine a simple function g(n)

such that f(n) = Θ(g(n))

• f(n)=(n5 −13n4 +n2logn)(logn+25).

• f(n)=(2n +n2)(n3 +3n).

More problems after this is solved. - Nov 18th 2010, 12:29 AMemakarov
One man's simple function is another man's nightmare :)

If you have a sum where dominates, i.e., , then . For example, .

It is customary to write n^2 for . It is even better to surround math with [tex] tags, e.g., [tex]f(n)=(2n +n^2)(n^3 +3n)[/tex] for .

Also, you are supposed to show some effort in solving a problem. At least write what you know and what your difficulty is.