Question

prove that 3+2√5 is irrational number​

Answer 1

5 points

Prove that 3+2 root 5 is irrational


Hello!!

3 + 2√5 = a/ b

2√5 =a/b -3

√5 =a-3b/2b

√5 is rational.

This contradicta the fact that √5 is irrational.

So our supposition is incorrect.

Hope this will help you.

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Answer 2

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