3.5=9/(4n)

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Solution for 3.5=9/(4n) equation: 


D( n )

4*n = 0

4*n = 0

4*n = 0

4*n = 0 // : 4

n = 0

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

3.5 = 9/(4*n) // - 9/(4*n)

3.5-(9/(4*n)) = 0

(-9/4)*n^-1+3.5 = 0

-9/4*n^-1 = -3.5 // : -9/4

n^-1 = 1.55555556

-1 < 0

1/(n^1) = 1.55555556 // * n^1

1 = 1.55555556*n^1 // : 1.55555556

0.64285714 = n^1

n = 0.64285714

n = 0.64285714

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