Question

show that 5- root3 is irrational
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Answer 1

Answer:

let 5- root 3 be irrational no.

a nd b are integer having no common factor other than 1.

5- root 3=a/b

root3=5a/b

root3=5b-a/b

if root 3 is rational then 5b-a/b is also rational.

therefore 5-root3is irrational no.

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