if-the-left-endpoint-approximation-of-the-area-under-fx-x3-from-x-1-to-x-4-is-21

Question

If the left endpoint approximation of the area under f(x) = $$x^3$$ from x = 1 to x = 4 is 21 and the right endpoint approximation is 39, what can be said about the true area?

Accepted Answer

The true area is between 21 and 39.

Answer

The true area is more than 39.

Answer

The true area is exactly 30.

Answer

The true area is less than 21.

If the left endpoint approximation of the area under f(x) = x^3 from x = 1 to x = 4 is 21 and the right endpoint approximation is 39, what can be said about the true area?