2. Rationalizați numitorii fracțiilor:
75 42- 18 45 36
24
6 15
a)
;
5√3 7√2' 3√2 5√3 4√3 2√6 3√2√3
28
24
18
36
54
72
30
42
b)
;
4√7' 4√6' 6√3' 6√6¹9√6'9√8' 15√2' 6√7
8
c)
6 24
15 4 28 12 10
3√2√3 5√6¹ 2√3¹ 3√2¹ 3√7¹ 5√2¹ 3√5
;
9
d)
12 15 18 25 15 30 45 8
5√6' 5√3 √24 4√5 2√5 7√6 2√10 3√6' 2√6'
C
a
18 45 3 9 12
24 15 18
e)
=;
2√6' 5√3¹' √12¹ √27¹ √48' 10√6¹ 3√6¹ 3√54