Question: a. In Problems 49-54, discuss the validity of each statement. If the statement is always true, explain why. If it is not always true, give

a. In Problems 49-54, discuss the validity of each statement. If the statement is always true, explain why. If it is not always true, give a counter example.
b. If /is a decreasing function on [a,b],then the area under the graph of f is greater than the left sum LR and less than the right sum Rn, for any positive integer n.

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