-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)

2/a-a = 0

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

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

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

a^1

2-a^2 = 0

2-a^2 = 0

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