(y^-2/4y^-7)^-2

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Solution for (y^-2/4y^-7)^-2 equation: 


D( y )

y = 0

y^-7*((y^-2)/4) = 0

y = 0

y = 0

y^-7*((y^-2)/4) = 0

y^-7*((y^-2)/4) = 0

1/4*y^-9 = 0 // : 1/4

y^-9 = 0

y należy do O

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

(y^-7*((y^-2)/4))^-2 = 0

16*y^18 = 0 // : 16

y^18 = 0

y = 0

y in { 0} 

y belongs to the empty set

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