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Question
The number `(5 - 3sqrt(5) + sqrt(5))` is ______.
Options
an integer
a rational number
an irrational number
a whole number
Solution
The number `(5 - 3sqrt(5) + sqrt(5))` is an irrational number.
Explanation:
We have,
The number is `(5 - 3sqrt(5) + sqrt(5))`
= `(5 - 2sqrt(5))` is also an irrational number.
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