Show that 5 - √5 is irrational

1.	Show that 5 - √5 is irrational
Answer» Answer: it's very easy let 5-√5 be a rational NUMBER then it can be written in the form of a/b. 5-√5 =a/b -√5=a/b-5 -√5=a-5b/b now here a contradiction arises that a IRRATIONAL number is equal to a rational number so our assumption was WRONG so 5-√5 is a irrational number. proved hope this will help u follow me and mark me as brainliest.

Answer»

Answer:

it's very easy

let 5-√5 be a rational NUMBER then it can be written in the form of a/b.

5-√5 =a/b

-√5=a/b-5

-√5=a-5b/b

now here a contradiction arises that a IRRATIONAL number is equal to a rational number so our assumption was WRONG so 5-√5 is a irrational number. proved

hope this will help u follow me and mark me as brainliest.

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Show that 5 - √5 is irrational​

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Show that 5 - √5 is irrational