From the choices given below mark the co-prime numbers

The three rational numbers between 3 and 4 are:

Which of the following is an irrational number?

The square root of which number is rational

\(
(-7+4 \sqrt{7}-3 \sqrt{7}) \text { is }
\)

\(
(16)^{3 / 4} \text { is equal to }
\)

\(
\sqrt{6} \mathbf{x} \sqrt{27} \text { is equal to: }
\)

Which of the following are irrational numbers?

\(
4 \sqrt{5}+5 \sqrt{5} \text { is equal to: }
\)

\(
\text { If } \sqrt{3}=1.732, \text { then } \sqrt{\frac{\sqrt{3}-1}{\sqrt{3}+1}} \text { is equal to: }
\)