7^-4a^5/7^-2a^-4

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Solution for 7^-4a^5/7^-2a^-4 equation: 


D( a )

a = 0

a = 0

a = 0

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

a^-4*((7^-4*a^5)/(7^-2)) = 0

1/49*a = 0 // : 1/49

a = 0

a in { 0} 

a belongs to the empty set

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