Question

if root 2 is equal to 1.4 and root 3 is equal to 1.7 find the value of each of the following, correct to one decimal place:
1: 1/root 3-root 2
2:1/3+2 root 2
3:2-root 3/root 3​

Answer 1

Answer:

1/√3-√2

=1/√3-√2 ×√3+√2/√3+√2

=√3+√2/(√3)²-(√2)² (using

identity

(a+b)(a-b)

=a²-b² in the

Denominator

=√3+√2/3-2

=√3+√2/1

=√3+√2