Estimate the area under the graph of f(x)= rectangles and right endpoints. R₁ 1 over the interval [2, 6] using eight approximating x + 1 Repeat the approximation using left endpoints. L₂ =

Find the surface area of a sphere of radius 5 by rotating the graph OI the function x2 between x = -5 and x = 5 about the x-axis. |

Find the total area between the curve of the function f(x)=−2x and the x-axis over the interval [−4,7].

Part A is posted as a picture, I need parts B and C please too:    (b) Repeat part (a) using left endpoints. L3 =   L6 =     (c) Repeat part (a) using midpoints. M3 =   M6 =