Prove that the following are irrational numbers
2 + √5
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Answered by
1
Answer:
If possible, let us assume 2+5 is a rational number.
2−qp=−5
q2q−p=−5
⇒−5 is a rational number.
But −5 is not a rational number.
∴ Our supposition 2+5 is a rational number is wrong.
⇒2+5 is an irrational number.
Answered by
2
Answer:
Sum of a rational and irrational is always irrational so, 2+ 5 square root is irrational
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