Réponses

2013-09-09T01:28:00+02:00
X=ln(8)+ln(1/16)-1/3ln(64)
=ln(8/16)-ln(64^1/3)
=ln(1/2)-ln(4)
=ln(1/8)
=ln1-ln(8)
=-3ln(2)

Y=1/2ln2-ln(8/64)
=1/2ln2-ln(1/8)
=1/2ln2-ln1+ln(8)
=1/2ln2+3ln2
=7/2ln2