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comment Limits of two variable functions
There are two r's in the numerator and one in denominator, after cancellation on one remains in the numerator.
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comment find pdf from mgf for normal distribution.?
Similar question math.stackexchange.com/questions/343930/…
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comment How to find the solutions of $x^3-x^2-x+1=0$
Since you know x=1, is a solution, divide the equation by x-1 to get a quadric eqation, solve that to get another two solutions.
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revised Simplify $\int \frac{1}{\sqrt{2-x^2}}\, dx$
constant of integration
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accepted About Bell Polynomials
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comment About Bell Polynomials
I tried it your way, but it the compiler returns an error "OverflowError: long int too large to convert to float"
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comment About Bell Polynomials
O.ops ,so thats how it is