2/7=4/t

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Solution for 2/7=4/t equation: 


D( t )

t = 0

t = 0

t = 0

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

2/7 = 4/t // - 4/t

2/7-(4/t) = 0

2/7-4*t^-1 = 0

-4*t^-1 = -2/7 // : -4

t^-1 = 1/14

-1 < 0

1/(t^1) = 1/14 // * t^1

1 = 1/14*t^1 // : 1/14

14 = t^1

t = 14

t = 14

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