Question

prove that root5 is irrational​

Answer 1

Answer:

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Answer 2

Answer:

let √5 = a/b

square on both sides

(√5)²=(a/b)²

5=a²/b²

hence, a²=5b² or b²= a²/5

now, let a= 5c

square on both sides

a²=(5c)²

5b² = 25c²

b² = 5c²

therefore, 5 is common in both situation

then, √5 is irrational

i hope this may help uhh