Question

Giving reason in each case show that each of the following number is irrational 4√5​

Answer 1

Explanation:

4√5 is a rational number

4√5 is a rational number

4√5 is a rational number

understand

Answer 2

is question ko contradiction method se solve kiya jata hai.

like let's say 4√5 be a rational no

then 4√5=p/q

√5=p/5q

so we got p/5q as rational since p and q are integers..

but this contradict the fact that √5 is irrational.

so our assumption is wrong

hence 4√5 is irrational.