Question

prove that the numbers 2 rootover 3-7​

Answer 1

Answer:

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23–7

Now, let us assume 23–7 be a rational number, ‘r’

So,23–7=r

23=r+7

3=(r+7)/2

We know that ‘r’ is rational, ‘(r+7)/2’ is rational, so ‘3’ is also rational.

This contradicts the statement that 3 is irrational.

So, 23–7 is an irrational number.

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Answer 2

Step-by-step explanation:

So,23–7=r

23=r+7

3=(r+7)/2

We know that ‘r’ is rational, ‘(r+7)/2’ is rational, so ‘3’ is also rational.

This contradicts the statement that 3 is irrational.

So, 23–7 is an irrational number.