Volume between sphere $x^2+y^2+z^2 = 2$ and paraboloid $z= x^2+y^2$

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Express the volume of region $D$ upper bounded by the sphere $x^2+y^2+z^2=2$ and the paraboloid $z=x^2+y^2$.

a- Cartesian Coordinates

b- Cylindrical Surface

c- Spherical coordinates

If you help me to write the integral for a, b and c ; I can solve this integral but I made something wrong. Results are different but I don't know which result is correct.

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Now, from drawing the curves, it can be seen that the region is lower bounded by the parabola, and upper bounded by the sphere. The plane of intersection is $z = 1$, which can be obtained from solving the quadratic $z^2 + z - 2 = 0$

Now, for the region below the intersection plane

$$V_1 = \int\int\int dV$$

With $0 \leq z \leq 1$, $-\sqrt{z} \leq y \leq \sqrt{z}$, $-\sqrt{z-y^2} \leq x \leq \sqrt{z-y^2}$

Hence

$$V_1 = \int_0^1 \left(\int_{-\sqrt {z}} ^ {\sqrt z}\left(\int_{-\sqrt{z-y^2}}^{\sqrt{z-y^2}}dx\right)dy\right)dz$$

The portion above the plane of intersection will be bounded by the sphere, so take the limits accordingly