3. Let R be the region below bounded by the parabola y = 4 - x² and the lines 3x - 2y + 3 = 0 and y = 0. (0,4) (a) Set up a (sum of) definite integral(s) with respect to x that is equal to the area of R. R (-2,0) (-1,0) (1,3)

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A: A=[2 1      1 2]I=[1 0      0 1]

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A: Use trigonometric substitution x=2sint.

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A: We need to find out the eAt.

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A: Here is the solution

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A: on solving this we get the

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A: We can find the measure of angle ADB as below

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A: The vectors:

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A: Here is the solution

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A: B×A={ (x,y) : x€B and y€A}

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