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Question
`sqrt0.4` is a/an ______.
Options
natural number
integer
rational number
irrational number
MCQ
Fill in the Blanks
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Solution
`sqrt0.4` is an irrational number.
Explanation:
`sqrt0.4`
= `sqrt(4/10)`
= `sqrt(2/5)`
= `sqrt2/sqrt5`
Since both `sqrt2` and `sqrt5` are irrational numbers, their direction is also an irrational number.
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