3-(432/y^2)=0

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Solution for 3-(432/y^2)=0 equation: 


D( y )

y^2 = 0

y^2 = 0

y^2 = 0

1*y^2 = 0 // : 1

y^2 = 0

y = 0

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

3-(432/(y^2)) = 0

3-432*y^-2 = 0

-432*y^-2 = -3 // : -432

y^-2 = 1/144

-2 < 0

1/(y^2) = 1/144 // * y^2

1 = 1/144*y^2 // : 1/144

144 = y^2

y^2 = 144 // ^ 1/2

abs(y) = 12

y = 12 or y = -12

y in { 12, -12 }

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