Question

Prove that 3+2√5 is irrational​

Answer 1

Answer:

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Answer 2

Answer:

To prove that 3+2✓5 is irrational.

➡️ We have to prove that 3+2✓5 is irrational

➡️Let us assume the opposite,

➡️i.e ,3+2✓5 is rational

➡️Hence ,3+2✓5 can be written in the form a/b

➡️where a and b (b≠ 0) are co-prime (no common factor than 1)

➡️Hence 3+2✓5=a/b

➡️2✓5 = a/b-3

➡️2✓5=a-3b/b