Question

27. Prove that 7-2/3 is an irrational number
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Answer 1

Answer:

Prove that 7-2 ✓3 is an irrational number

Let 7-2√3 as rational number. Then,7-2√3=a/b,where a and b are coprime. Here,a/-2b -7 is a rational number . ... Therefore,7-2√3 is an irrational number.