Bonjour,
a) ||5-4|+|4-5||
=||1|+|-1||
=|1+1|
=|2|
=2
b) |2×|3-5|+2|-5
=|2×|-2|+2|-5
=|2×2+2|-5
=|4+2|-5
=|6|-5
=6-5
=1
Et voilà! ;)
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Bonjour,
a) ||5-4|+|4-5||
=||1|+|-1||
=|1+1|
=|2|
=2
b) |2×|3-5|+2|-5
=|2×|-2|+2|-5
=|2×2+2|-5
=|4+2|-5
=|6|-5
=6-5
=1
Et voilà! ;)