Question

3. Raționalizați numitorii fracțiilor: ​

Answer 1

3√5/2√3 = (3√5×2√3)/(2√3)² = 6√15/12 = √15/2

2√6/3√2 = 6√12/18 = 12√3/18 = 2√3/3

-7√15/√20 = -7√300/20 = -70√3/20 = -7√3/2

8√15/20 = 8√300/20 = 80√3/20 = 4√3

√35/√125 = √35/5√5 = 5√175/125 = 25√7/25 = √7

√21/√63 = √21/3√7 = 3√147/63 = 21√3/63 = √3/3

√6/2√2 = 2√12/8 = 4√3/8 = √3/2