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using binomial theorem can I write sqrt(1+(d^2)/(x^2)) = 1+ .5(d^2)/(x^2)?
d is a variable. X known constant.
d is a variable. X known constant.
For a first approximation, yes. But you can do better:using binomial theorem can I write sqrt(1+(d^2)/(x^2)) = 1+ .5(d^2)/(x^2)?
d is a variable. X known constant.