Question

show that
7-2√3 is an irrational no. ​

Answer 1

Answer:

Here,a/-2b -7 is a rational number . We know that √3 is an irrational number. Hence,our assumption is not correct. Therefore,7-2√3 is an irrational number.

Step-by-step explanation:

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Answer 2

Answer :-

=7-2√3

= 5√3

Reason -

Let 5+√3 is a rational number. A rational number can be written in the form of p/q. p,q are integers then (p-5q)/q is a rational number. ... Therefore,5+√3 is an irrational numbers.

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