Unformatted text preview: += += + âˆ« x a x x x a x dr r x r a Substitution yields the result . 1 2 2 2 2 += x a x a GMm F The second term in brackets can be written as 2 2 1 2 2 2 1 1 ) ) ( 1 ( ) ( 1 1 â‰ˆ + = +x a x a x a if x >> a , where the binomial approximation (or firstorder Taylor series expansion) has been used. Substitution of this into the above form gives , 2 x GMm F â‰ˆ as it should....
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 Derivative, Power Series, Taylor Series, 2m, small ring exerts

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