Jawabanmu

2014-01-31T22:54:21+07:00
(√3 - √5 )² = 3- 2√5 +5 = 8-2√5
2014-02-01T01:49:45+07:00
[ 1,74 <> 2,24 ] = 3,0276 <> 5,0176 ]