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. 5 (a) Use a calculator or a computer to find (x2 + 1) dx. Round your answer to two decimal places. ( x2 + 1 ) dx = i 46.6 eTextbook and Media do using a (b) Estimate / (x + 1) dx using a left-hand sum withn = 3 (i.e. L3). Round your answer to two decimal places. L3 = HI 25.92 5 (c) Estimate (x2 + 1) dx using a right-hand sum with n = 3 (i.e. R3). Round your answer to two decimal places. R3 = i- 5 Select the correct graph of (x2 + 1) dx and its approximation by R3. O 251 20- 15- 10- 5- 0 N W 4 X O 25- 20- 15- 10- 5- O 4 X10 Use the following table to estimate f (x)dx. Assume that f(x) is a decreasing function. X 0 2 4 6 8 10 f (x) 51 47 43 35 27 8 To estimate the value of the integral we use the left-hand sum approximation with Ax = Then the left-hand sum approximation is To estimate the value of the integral we can also use the right-hand sum approximation with Ax = Then the right-hand sum approximation is i The average v of the left- and right sum approximations is a better estimate which is