Find lower and upper bounds for the area between the x-axis and the graph of f(x) = √√√√x+1 over the interval [2, 4] by calculating left-endpoint and right-endpoint Riemann sums with 4 subintervals. The graphs of L4 and R4 are given below. 8 77 6 $ 4 3 2 Lower Bound (L₁) Upper Bound (R4) 8 Round your final answer to three decimal places. = 7 6

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