QUESTION 1 Find the following sum 15 201-10141)- i=1 As your answer, please input the value of the sum- QUESTION 2 Let R be the region bounded by the graph 3; = f (x) of a function f and xaxis for a: in [(1, b] whose area is given by the limit of the right endpoint approximations below A(R)= \"1111;0in ((1+%)ln (2+%)) i=1 Find f and [0, b]- As your answer please input f (E?) in decimal form with three signicant digits after the decimal point. QUESTION 3 Let f (at) = we\" . Find the left and the right endpoint approximations of the area A (R) of the region R bounded by the graph 3; = f (I) and the m-axis for :1: in [0,1] using points 3:0 = 0, 2:1 = 0-25, :52 = 0.5, x3 = 0.75, and 3:4 = 1. If L4 and R4 denote the left and the right endpoint approximations respectively, please enter R4 - L4 as your answer in decimal form with three signicant digits after the decimal point