Question

Rationalize the denominator of each of the following expressions:

a)1/√7

b)1/1+√3

c) 5/2+√11​

Answer 1

Answer:

a) 1/√7=1/√7×√7/√7=√7/7

b) 1/1+√3= 1/1+√3×1-√3/1-√3=1-√3/-2

c)5/2+√11=5/2+√11×2-√11/2-√11= 5(2-√11)/4-11=5(2-√11)/-7