wonder if anyone know what the derivate to y = ln(x + sqrt(1+x^2)) is ?? :/
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y´ = 1/sqrt(x^2+1) right ?
no it is not rite in general if so...
(1/sqrt(x^2+1)) / (ln(x + sqrt(1+x^2))) ?
Originally Posted by paulaa (1/sqrt(x^2+1)) / (ln(x + sqrt(1+x^2))) ? no again ...
So she was right the first time! (Which figures, for the log form of arcsinh.)
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