Răspuns:
radical 5 +radical 8 = 5,064...
radical 6 +radical 7 = 5,095...
Deci :
radical 5 +radical 8 < radical 6+radical 7
Explicație pas cu pas:
radical 5 = 2,2360679775
radical 8 = 2,8284271247
radical 5 + radical 8 = 2,236... + 2, 828 ...= 5,604...
radical 7 = 2,645...
radical 6 = 2,449...
radical 6 + radical 7 = 2,449 ...+ 2,645...= 5,095...
De aici => radical 5 + radical 8 < radical 6 + radical 7
