2=(22/l)^2

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Solution for 2=(22/l)^2 equation: 


D( l )

l = 0

l = 0

l = 0

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

2 = (22/l)^2 // - (22/l)^2

2-(22/l)^2 = 0

-484*l^-2 = -2 // : -484

l^-2 = 1/242

-2 < 0

1/(l^2) = 1/242 // * l^2

1 = 1/242*l^2 // : 1/242

242 = l^2

l^2 = 242 // ^ 1/2

abs(l) = 11*2^(1/2)

l = 11*2^(1/2) or l = -(11*2^(1/2))

l in { 11*2^(1/2), -(11*2^(1/2)) }

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