Let f (x) = csc x cot x. Compute the area A of the region between the graph of f and the x axis on the interval [π/4, π/2]. A =

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Q: 2a

A: Step 1:Step 2:Step 3:The change of order gives same answer which is 9.

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Q: 9

A: Step 1:Step 2:Step 3:Step 4: