Examine, whether the following numbers are rational or irrational :
1) √7
2) √4
3) 2+ √3
4) √3+√2
5) √3+√5
6) (√2-2)²
7) (2-√2)(2+√2)
8) (√2+√3)²
9) √5-2
10) √23
11) √225
12) 0.3796
13) 7.478478
14) 1.101001000100001
Answers
Answered by
7
1.irrational
2.rational
3.irrational
4.irrational
5.irrational
6.rational
7.rational
8.irrational
9.irrational
10.irrational
11.rational
12.irrational
13.rational if elaborate
14.irrational
2.rational
3.irrational
4.irrational
5.irrational
6.rational
7.rational
8.irrational
9.irrational
10.irrational
11.rational
12.irrational
13.rational if elaborate
14.irrational
Answered by
5
1) ,3) ,4) ,5) ,6) ,8) ,9) ,10) and 14) are irrational
&
2) ,6) ,7) ,11) ,12) and 13) are rational
&
2) ,6) ,7) ,11) ,12) and 13) are rational
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