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Definite Integrals

Definite Integrals

Right-Hand Sum Examples

Example 1

Let R be the region between the graph f(x) = x2 + 1 and the x-axis on the interval [0, 4]:

Use a right-hand sum with two sub-intervals to approximate the area of R.

Example 2

Let R be the region between the graph f(x) = x2 + 1 and the x-axis on the interval [0, 4]. Use a Right-Hand Sum with 4 sub-intervals to estimate the area of R.

Example 3

Let S be the region between the graph of g and the x-axis on the interval [0, 4].

Use a right-hand sum with 2 sub-intervals to estimate the area of S. Is this an under-estimate or an over-estimate?

Example 4

Let f(x) = 2 + x2 and let R be the region between the graph of f and the x-axis on the interval [0, 8].

Use a right-hand sum with 4 sub-intervals to estimate the area of R.

Example 5

Let f (x) = 4x and let R be the region between the graph of f and the x-axis on the interval [1, 2]. Use a right-hand sum with 4 sub-intervals to estimate the area of R.

Example 6

Let f (x) = 2x on [2, 10]. Find RHS(5). That is, use a right-hand sum with 5 sub-intervals to estimate the area between the graph of f and the x-axis on [2, 10].

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