Question

show that 2√3-5 is an irational number​

Answer 1

$\huge \star \underline \pink{answer}$

No, 2√3 -5 is not a iraational no

Answer 2

, assume that 2+3root 5 is rational.

2+3root5=p/q,where p and q are coprimes and q not equals to 0.

3root 5=p/q-2.

root 5=p/q-2/3.

A rational number never equals to an irrational number.

We assume that p and q are coprimes and q not equals to 0.

so, our assumption is wrong.

2+3root 5 is an irrational number.

Thank you, hope it helps....