# Integration of Vectors

(a) Prove that $$\begin{array}{clcr}\int\int_{S} r^{5}ndS=\int\int\int_{V}5r^{3}$$rdV

(b) Prove that $$\begin{array}{clcr}\oint_{c}\phi{d}$$r$$=\begin{array}{clcr}\int\int_{S}dS\times\nabla\phi$$

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(a) Prove that $$\begin{array}{clcr}\int\int_{S} r^{5}ndS=\int\int\int_{V}5r^{3}$$rdV

(b) Prove that $$\begin{array}{clcr}\oint_{c}\phi{d}$$r$$=\begin{array}{clcr}\int\int_{S}dS\times\nabla\phi$$
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