Math, asked by satishsatish4961, 9 months ago

Prove that 3+root 5 is irrational

Answers

Answered by nusratsaba01
1

Answer:

us assume that 3−5 is a rational number

Then. there exist coprime integers p, q,q=0 such that

      3−5=qp

=>5=3−qp

Here, 3−qp is a rational number, but 5 is a irrational number.

But, a irrational cannot be equal to a rational number.

This is a contradiction.

Thus, our assumption is wrong.

Therefore 3−5 is an irrational number.

December 20, 2019Toppr

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