1. Consider the integral
5∫9 ((4/x)+4) dx
a) Find the Riemann sum for this integral using right endpoints and n = 4.
b) Find the Riemann sum for this same integral, using left endpoints and n 4.
2. Use the Midpoints Rule to approximate
-1.5∫5.5 x3dx
With n = 7.
3. Consider the graph of the function f(x):
Evaluate the following integrals by interpreting them in terms of areas:
a) 0∫2 f(x) dx =
b) 0∫5 f(x) dx =
c) 5∫7 f(x) dx =
d) 0∫9 f(x) dx =
4. Consider the graph of the function g(x):
The graph from x = 2 to x = 6 is a semicircle. Evaluate the following integrals by interpreting them in terms of areas:
a) 0∫2 g(x) dx =
b) 2∫6 g(x) dx =
c) 0∫7 g(x) dx =
5. Find a and b.
7∫20 f(x) - 7∫14 f(x) = a∫b f(x)
6. Let 1∫5.5 f(x)dx = 8, 1∫2.5 f(x)dx = 10, 4∫5.5 f(x)dx = 5.
Find 2.5∫4 f(x)dx =
And 4∫2.5 (8f(x) - 10)dx =
7. Given that 1 ≤ √(x3 + 1) ≤ on [0, 2] to estimate 0∫2 √(x3 + 1)dx.