(9/4)/(7/X)

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Solution for (9/4)/(7/X) equation: 


D( X )

7/X = 0

X = 0

7/X = 0

7/X = 0

7*X^-1 = 0 // : 7

X^-1 = 0

X należy do O

X = 0

X = 0

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

(9/4)/(7/X) = 0

9/28*X = 0 // : 9/28

X = 0

X in { 0} 

X belongs to the empty set

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