ICSE Class 9 Answered
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1) negative of an irrational number is irrational
Asked by Arush.bhise | 15 Apr, 2019, 10:47: AM
Expert Answer
To prove that: Negative of an irrational number is irrational
Proof:
Let us assume that negative of an irrational number is a rational number.
Let p be an irrational number,
→ -p is a rational number.
→ - (-p) = p is a rational number.
But p is an irrational number.
Therefore our assumption was wrong.
So Negative of an irrational number is a rational number.
Answered by Yasmeen Khan | 15 Apr, 2019, 11:23: AM
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