2 questions to be answered I need the answers separately and the work

10 pts 1 0 Details Approximate the area under the curve graphed below from x = 1 to x = 6 using a Left Endpoint approximation with 5 subdivisions and two decimal places. 2 3 4 5 6 Question 11 5 pts 9 1 0 Details Use the chain rule to find the derivative of f(z) = 3( -825 - 528) 12 You do not need to expand out your answer. f' (I ) =