a) (-1)nn! r-n-1 Sin(n+1)ϑ
b) (-1)n(n)! r-n-1 Sin(-n-1)ϑ
c) (-1)n+1(n+1)! r-n-1 Sin(n+1)ϑ
d) (-1)n+1(n+1)! r-n-1 Sin(-n-1)ϑ
Nth derivative of \(\frac{1}{(1+x^2)}\)?
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Nth derivative of \(\frac{1}{(1+x^2)}\)?
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