(pi)/((7x)^2)

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Solution for (pi)/((7x)^2) equation: 


D( x )

(7*x)^2 = 0

(7*x)^2 = 0

(7*x)^2 = 0

49*x^2 = 0 // : 49

x^2 = 0

x = 0

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

pi/((7*x)^2) = 0

(pi/49)*x^-2 = 0 // : pi/49

x^-2 = 0

x należy do O

x belongs to the empty set

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