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State whether the following is irrational. sqrt(4/5) - Mathematics

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प्रश्न

State whether the following is irrational.

`sqrt(4/5)`

योग
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उत्तर

`sqrt(4/5)`

= `sqrt(4)/sqrt(5)`

= `2/sqrt(5)`

`sqrt(5)` is irrational → expression is irrational

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Rational and Irrational Numbers - EXERCISE 1B [पृष्ठ ११]

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बी निर्मला शास्त्री Mathematics [English] Class 9 ICSE
अध्याय 1 Rational and Irrational Numbers
EXERCISE 1B | Q 3. (iii) | पृष्ठ ११
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