How to prove 2+√5 is irrational number if it is given that 2 is a ra

1.	How to prove 2+√5 is irrational number if it is given that 2 is a rational number?
Answer» Take root 5 as rational no. As an assumtion or contrary then prove it irrational and write it contradicts our assumption so root 5 is irrational and then 2 on other side and prove it as fully irrational no. First prove √5is irrational then take 2on another side of = then say irrational can not be equal to rational therefore it is irrational Hi

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