Question

show that root 7 - 3 is irrational​

Answer 1

Here is your answer:-

there is actually no explanation for it but whenever we there is root sign we consider it as irrational bcoz the value of root 7 will be in decimals and when u subtract it u will get answer in decimals so it isn't appropriate as rational numbers are either fractions or integers. For furthur explanation u need to follow me and get the solution

Hope u got it mate.