2. Rationalizați numitorii fracțiilor: 6 15 75 42 18 45 36 24 =; a) 5√3' 7√2' 3√√2 5√3 4√3³ 2√6' 3√2¹ √3³ 54 72 30 42 28 24 18 36 b) 4√7' 4√6' 6√3 6√6' 9√69√815√26√7 8 6 24 15 4 28 12 10 =; 3√2 √3 5√6¹ 2√3 3√2 3√7 5√2 3√5 c) ; 12 9 d) 15 18 25 15 30 45 8 5√6¹ 5√3¹ √24¹ 4√5¹ 2√5 7√6' 2√10' 3√6' 2√6' 18 45 3 9 12 24 15 18 e) 2√6 5√3' √12 √27 √48 10√6' 3√6' 3√54​