a=2/a

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Solution for a=2/a equation: 


D( a )

a = 0

a = 0

a = 0

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

a = 2/a // - 2/a

a-(2/a) = 0

a-2*a^-1 = 0

1*a^1-2*a^-1 = 0

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

a^1*(1*a^2-2*a^0) = 0

a^1

a^2-2 = 0

a^2-2 = 0

DELTA = 0^2-(-2*1*4)

DELTA = 8

DELTA > 0

a = (8^(1/2)+0)/(1*2) or a = (0-8^(1/2))/(1*2)

a = 2^(1/2) or a = -2^(1/2)

a in { -2^(1/2), 2^(1/2)} 

a in { -2^(1/2), 2^(1/2) }

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