a^-2=1/36

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Solution for a^-2=1/36 equation: 


D( a )

a = 0

a = 0

a = 0

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

a^-2 = 1/36 // - 1/36

a^-2-(1/36) = 0

a^-2-1/36 = 0

1*a^-2 = 1/36 // : 1

a^-2 = 1/36

-2 < 0

1/(a^2) = 1/36 // * a^2

1 = 1/36*a^2 // : 1/36

36 = a^2

a^2 = 36 // ^ 1/2

abs(a) = 6

a = 6 or a = -6

a in { 6, -6 }

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