Explanation:
1) √8.√2=√16
=4
4 is a natural number it falls in rational.
2)1/2* √9.√4=1/2*3*2
=3
3 is a natural number it falls in rational.
3)√5.√2=√10
√10 is a non-terminating and non recurring number so it falls in irrational.
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