Final answer:
The area under the curve g(x) = 4 sin x can be approximated using six rectangles based on both left and right endpoints over the interval [0, π], and the results are rounded to four decimal places.
Step-by-step explanation:
Approximating Area Using Left and Right Endpoints
The question pertains to estimating the area under the curve of the function g(x) = 4 sin x using rectangles. With six rectangles over the interval [0, π], we must use both left and right endpoints to approximate the areas.
To use the left endpoints, we divide the interval into 6 equal parts. Each rectangle's width is π/6, and the height is determined by the value of the function at the left end of each subinterval. The approximate area is the sum of the areas of these rectangles.
The right endpoints method is similar but uses the value of the function at the right end of each subinterval to determine each rectangle's height. The sum of the areas of these rectangles gives us a second approximation.
Finally, we round both approximations to four decimal places as requested.