Question

classify tha following numbers as rational or irrational 2-✓5​

Answer 1

Answer:

heya mate ☺

$2 - \sqrt{5} \: is \: irrational$

♡ hope it helps u ♡

Answer 2

Step-by-step explanation:

consider root 5 to be rational

root5=a/b

5b²=a²

so, b² is divisible by 5

a=5c

5b²=25c²

b²=5c²

so, b, b²is divisible by 5

so it contradicts the fact that root 5 is rational

therefore, root 5 is irrational

rational -irrational =irrational

so, 2-root5 is irrational

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