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Homework 07 F19: Problem 8 Previous Problem Problem List Next Problem (1 point) Estimate I = (3x2 + 4x + 6) dx using a Riemann sum, n = 3 subintervals, and (a) Left endpoints. (b) Right endpoints. I~Homework 07 F19: Problem 9 Previous Problem Problem List Next Problem . TT / 2 (1 point) Estimate I = o x sin (x ) dx using the partition {0, 6' 4' 3' 2 1 } and (a) Left endpoints. I~ (b) Right endpoints. I~Homework 07 F19: Problem 10 Previous Problem Problem List Next Problem (1 point) Recall the definition of a definite integral: [ f(x)de = lim f(1.)A. i=1 where I are right endpoints. (a) Determine Ar and I; in the definition for [(3+ 3x) do. Ax = (b) Using the definition, evaluate the integral. (3+ 3x) dr =Homework 07 F19: Problem 11 (1 point) Suppose that the integral I: A;):(1') (11' can be represented by the following Riemann sum using right endpoints and n, subintervals: '/36( S-lM 12) +.+1/36(6") (a) Determine b. b = (b) Determine f (3:). HI) = (5) Evaluate the integral by interpreting it in terms of areas