Question

Racionalize os denominadores​

Answer 1

a) (7 √2)/2

b) (18 √3)/15 = (6 √3)/5

c) 5/ (√6+2) . (√6-2)/(√6-2) =

5.(√6-2) / 6 -4 =

(5 √6 - 10)/ 2