(2y^7/9)^-3

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Solution for (2y^7/9)^-3 equation: 


D( y )

(2*y^7)/9 = 0

(2*y^7)/9 = 0

(2*y^7)/9 = 0

2/9*y^7 = 0 // : 2/9

y^7 = 0

y = 0

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

((2*y^7)/9)^-3 = 0

729/8*y^-21 = 0 // : 729/8

y^-21 = 0

y należy do O

y belongs to the empty set

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