Show that 2 (1/R 12 ) = 1 (1/R 12 ) = R 21 /R

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Show that ∇2(1/R12) = −∇1(1/R12) = R21/R312.

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Engineering Electromagnetics

ISBN: 978-0073380667

8th edition

Authors: William H. Hayt, John A.Buck

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