### Home > CALC > Chapter Ch2 > Lesson 2.2.3 > Problem 2-85

2-85.

General form of left-endpoint Riemann Sum:

*n* − 1 = 9 *n* = 10 There are 10 rectangles.

The function is *f*(*x*) = 3*x*² − 2

*a* = −3 This is where the region starts.

Refer to the graph in part (a).

Use the eTool below to complete the problem.

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