Question

PROVE THAT 3 BY 2 ROOT 5 IS IRRATIONAL

Answer 1

Answer:

Suppose 3/2root5 is a rational no.

Then there exists two co prime a & bequals to them

Now, 3/2root5=a/b

Root5=3b/2a

3b/2a is rational no. But here this contradicts that root5 is also rational no. according to this solution but root5 is an irrational no., Hence 3/2root5 is an irrational no.

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