prove that root 11 - root 3 is irrational
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suppose root 11-root 3 is rational
let root 11-root 3=p/q(where p, q are co- primes)
squaring on both sides
(root 11-root3)2=(p/q)2
11-3 11root9=p2/q2
8- 11root 9=p2/q2
11 root 9=p2/q2-8
11 root 9=p2-8q/q2
root 9=p2-82/11q2
I.e irrational number =rational number
which is a contradiction.
therefore, our assumption is false.
Hence, root 11-root 3
I hope it helps you..
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