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The area of the region described by A = {(x, y) : x 2 + y 2 ≤ 1 and y 2 ≤ 1 – x} is :

1. 3 2 2 + π
2. 3 4 2 + π
3. 3 4 2 − π
4. 3 2 2 − π

Correct answer: 3 4 2 + π

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