équation

barakatomar1960 shared this problem 8 months ago
Not a Problem

Bonjour tout le monde

Dans Calcul formel

Quand je veux écrire

/OAAAAAElFTkSuQmCC

√(x+2+3√(2x-5))+√(x-2-√(2x-5))=2√(2)

Geogebra affiche 2√(2)=2√(2)

Merci d'avance

Comments (4)

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Bonsoir, je confirme si on ne choisit pas le menu "Conserver la saisie" sinon c'est OK


/wNRp729wcNK8QAAAABJRU5ErkJggg==

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if you graph sqrt(x+2+3 sqrt(2x-5))+sqrt(x-2-sqrt(2x-5)) you can see that the equation have an interval of solutions [2.5,3] with the machine precision


GG has not implemented equations with infinite number of solutions


wolfram alpha calculates /zwg6HdeGQQPJ199+5dgyyln8t0d3eTz0yPkEAjgtFAxEwwGoiYCUYDETPBaCBiJhgNRMwEo4GImWA0EDETjAYiZoLR8D+zZVM8CPcN7gAAAABJRU5ErkJggg==so for a computer the function gives 2 sqrt(2) in interval

in fact, it is not possible to program algebraic solutions for all equations

https://www.wolframalpha.co...

https://www.wolframalpha.co...

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CAS >


/IY4kPkfrKbkAAAAASUVORK5CYII=

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what means

wolfram alpha answers 2.5<=x<=3

Is d_0 all numbers from -1 to 1?

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