9/4=81/n

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Solution for 9/4=81/n equation: 


D( n )

n = 0

n = 0

n = 0

n in (-oo:0) U (0:+oo)

9/4 = 81/n // - 81/n

9/4-(81/n) = 0

9/4-81*n^-1 = 0

-81*n^-1 = -9/4 // : -81

n^-1 = 1/36

-1 < 0

1/(n^1) = 1/36 // * n^1

1 = 1/36*n^1 // : 1/36

36 = n^1

n = 36

n = 36

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