0.75y=700/y

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Solution for 0.75y=700/y equation: 


D( y )

y = 0

y = 0

y = 0

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

0.75*y = 700/y // - 700/y

0.75*y-(700/y) = 0

0.75*y-700*y^-1 = 0

0.75*y-700*y^-1 = 0

y^-1*(0.75*y^2-700) = 0

0.75*y^2 = 700 // : 0.75

y^2 = 933.33333333

y^2 = 933.33333333 // ^ 1/2

abs(y) = 933.33333333^(1/2)

y = 933.33333333^(1/2) or y = -933.33333333^(1/2)

1/y = 0

1*y^-1 = 0 // : 1

y^-1 = 0

y należy do O

y in { 933.33333333^(1/2), -933.33333333^(1/2) }

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