1 2
















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Pi_


Icona

pi_


Icona

E_


Icona

e_




Icona

arrel(r:RR,n:ZZ)



arrels(r:RR,n:ZZ)



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arrel2(r:RR)arrel2(r)=arrel(r,2)


arrels2(r:RR)arrels2(r)={arrel2(r), -arrel2(r)}










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