Răspuns:
Explicație pas cu pas:
3/√8=√2*3/2√2
3√2/2√2=3√2/4
-
6/√12=6/2√3=6*√3/2√3*√3=6/√3/2*3=6*√3/ 6=√3
-
-8/√20=-8/2√5=-8*√5/2*√5*√5=-8√5/2*5=-8√5/10=-4√5/5
-
2/√24=2/2√6=2√6/2√6*√6=2√6/2*6=2√6/12=√6/6
-
16/√24=16/2√6=16√6/2√6*√6=16√6/2*6=16√6/12=4√6/3
-
4/√28=4/2√7=4√7/2√7*√7=4√7/2*7=4√7/14=2√7/7
-
2a/ √a²*b=2a/a√b= 2a*√b / a√b*√b=2a√b/a*b²=a√b/b²
