1618/y

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Solution for 1618/y equation:


D( y )

y = 0

y = 0

y = 0

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

16 < 18/y // - 18/y

16-(18/y) < 0

16-18*y^-1 < 0

-18*y^-1 < -16

-18*y^-1 < -16 // * -1

18*y^-1 > 16

18*y^-1 > 16 // : 18

y^-1 > 16/18

y^-1 > 8/9

1/(y^1) > 8/9

y <> 0

1/(y^1) > 8/9 // * y^2

(y^2)/(y^1) > 8/9*y^2

y^1 > 8/9*y^2

y-8/9*y^2 > 0

y^1*(1-8/9*y) > 0

y < 0

-(abs(y))^1*(8/9*(abs(y))^1+1) > 0 // : -(abs(y))^1

8/9*(abs(y))^1+1 < 0

8/9*(abs(y))^1 < -1 // : 8/9

(abs(y))^1 < -1/8/9

(abs(y))^1 < -9/8 // ^ 1/1

abs(y) < (-9/8)^(1/1)

abs(y) < -9/8

y belongs to the empty set

y < 0

y > 0

y^1*(1-(8/9*y^1)) > 0 // : y^1

1-(8/9*y^1) > 0

1 > 8/9*y^1 // : 8/9

1/8/9 > y^1 // ^ 1/1

(1/8/9)^(1/1) > y

y in (0:9/8)

y > 0

y in (0:9/8)

y in (0:9/8)

(0:9/8)

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