prove that 3 + 2 root 7
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Step-by-step explanation:
3 + 2√7 ...
3 is a rational number but √7 is irrational and we know that if we multiply an irrational number with a number other that zero then it is also irrational .
→ 2√7 is irrational .
Since , sum of a rational and an irrational number is irrational
→ 3+2√7 is irrational
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