Please see attachment
Determine whether....converge or diverge
...derive a necessary condition for the equation...to have a rational root. Then use this condition to prove...
Suppose that f(x) has a continuous first derivative for all x in R. Prove that f(x) is concave if and only if....© BrainMass Inc. brainmass.com October 9, 2019, 11:15 pm ad1c9bdddf
This contains four parts: determining whether given series converge or diverge, deriving a condition for an equation to have a rational root and using that condition in a proof, deriving a formula for the nth derivative of the product of two functions, and a set of three proofs regarding concavity.