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prove grad(1/R) = -vector a(1/R^2) and grad'(1/R) = vector a(1/R^2) . . Some useful vector formulas Position vector, R R=R- Jax-x)+(-y* + :-) Gradient of
prove grad(1/R) = -vector a(1/R^2) and grad'(1/R) = vector a(1/R^2) . . Some useful vector formulas Position vector, R R=R- Jax-x)+(-y* + :-) Gradient of 1/R -[(x-x)+(9-Y+- 0] @alla av R ax-x')+a, (-)+a -:') (x,y) [(x -x") +(y->) + (:-)]" a 1 V R + + a R R R R R . a V R R R R R R QUERO Pana Eestistatin
prove grad(1/R) = -vector a(1/R^2)
and grad'(1/R) = vector a(1/R^2)
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