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Prove that 3+2under root 5 is irrational |
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Answer» LET 3 + 2 root 5 is RATIONAL therefore 3 + 2 root 5=a/b root 5=a-3/2b because a-3/2b is rational therefore root 5 will also be rational but we know that, root 5 is IRRATIONAL that is our SUPPOSITION is wrong that is 3+2 root 5 is irrational. |
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