28/i=4

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Solution for 28/i=4 equation: 


D( i )

i = 0

i = 0

i = 0

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

28/i = 4 // - 4

28/i-4 = 0

28*i^-1 = 4 // : 28

i^-1 = 1/7

-1 < 0

1/(i^1) = 1/7 // * i^1

1 = 1/7*i^1 // : 1/7

7 = i^1

i = 7

i = 7

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