Pleaseee me computing definite integral by appealing to geometric formulasgraph the following integral then, find the exact area of the shaded region. justify for each problem

Plotting the functions is highly recommended.

For A, the area under over the interval [1, 2] is the area of rectangle with height 3 and width 2 - 1 = 1, so the area is

For B, the area under plotted over the interval [0, 2] is the area of a triangle with height 1 and base length 2, so the area is

21

step-by-step explanation:

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step-by-step explanation: