1. Raționalizați numitorii: a) 12/(sqrt(3)); - 9/(3sqrt(3)); 16/(2sqrt(2)); 42/(2sqrt(7)); 18/(2sqrt(3)); 12/(3sqrt(2)); 36/(3sqrt(6)); 21/(sqrt(7)) b) 15/(sqrt(3)); - 24/(2sqrt(6)); 21/(sqrt(3)); 10/(sqrt(5)); - 20/(2sqrt(5)); - 30/(2sqrt(5)); 35/(sqrt(5)); 30/(sqrt(50)) c) 14/(sqrt(2)); - 15/(sqrt(5)); - 24/(sqrt(8)); 16/(sqrt(32)); - 36/(sqrt(27)); 24/(sqrt(12)); - 45/(sqrt(75)); (sqrt(63))/(3sqrt(7)) d) 18/(3sqrt(2)); - 48/(sqrt(56)); (sqrt(72))/(8sqrt(6)); - 60/(sqrt(75)); - 64/(sqrt(48)); - 56/(sqrt(84)); 48/(3sqrt(12)); - 45/(sqrt(60)) e) sqrt(7 1/5); sqrt(8 4/7); sqrt(5 1/3); sqrt(4 1/6); sqrt(3 1/5); sqrt(16 2/3); sqrt(9 3/5); sqrt(9 3/8) sqrt(8 1/3) / (sqrt(8 1/6)); sqrt(13 1/2); sqrt(10 4/5); sqrt(10 2/3); sqrt(6 6/7); sqrt(14 2/5); sqrt(25 3/5) g) 12/(2sqrt(3)); 27/(3sqrt(3)); 45/(3sqrt(5)); 72/(6sqrt(2)); 48/(6sqrt(6)); 54/(3sqrt(6)); 28/(2sqrt(7)); 42/(6sqrt(7))​