The area of the region described by
$$A = \left\{ {\left( {x,y} \right):{x^2} + {y^2} \le 1} \right.$$ and $$\left. {{y^2} \le 1 - x} \right\}$$ is :
$$A = \left\{ {\left( {x,y} \right):{x^2} + {y^2} \le 1} \right.$$ and $$\left. {{y^2} \le 1 - x} \right\}$$ is :
- A$${\pi \over 2} - {2 \over 3}$$
- B$${\pi \over 2} + {2 \over 3}$$
- C$${\pi \over 2} + {4 \over 3}$$
- D$${\pi \over 2} - {4 \over 3}$$
✓ Correct answer: C
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