Integrating vector function

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Integrate the vector function

$$F=(2x)\hat{i}+(4y)\hat{j}-(5z)\hat{k}$$ Over the closed surfaces of the volume defined between the surfaces of

$x^2+y^2+z^2=4$ and $x^2+y^2+z^2=1$ and $z>0$.

I used Green's divergence method but I couldn't able to reach a meaningful solution.

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Since you have a closed surface, the divergence theorem would be appropriate.

$\nabla\cdot F = 1$

$\iiint dV = V$

Which is the volume between two hemi-spheres.

$\frac 23 \pi (R^3 - r^3) = \frac {14\pi}{3}$


$\int_0^{2\pi}\int_{0}^{\frac {\pi}{2}}\int_1^2 \rho^2\sin\phi \;d\rho\;d\phi\;d\theta\\\int_0^{2\pi}\int_{0}^{\frac {\pi}{2}}\frac 13 \rho^3\sin\phi| _1^2\;d\phi\;d\theta\\ \int_0^{2\pi}\int_{0}^{\frac {\pi}{2}}\frac 13 (8-1)\sin\phi \;d\phi\;d\theta\\ \int_0^{2\pi}\int_{0}^{\frac {\pi}{2}}\frac 73 \sin\phi \;d\phi\;d\theta\\ \int_0^{2\pi}\frac 73 (-\cos\phi)|_0^{\frac\pi 2} \;d\theta\\ \int_0^{2\pi}\frac 73 \;d\theta\\ \frac 73 (2\pi)\\ \frac {14\pi}3$