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Mathematics
Mathematics
Problem
Given the numbers
7
,
0.625
,
3.
6
‾
,
121
,
0.1010010001
…
\sqrt{7},\;0.625,\;3.\overline{6},\;\sqrt{121},\;0.1010010001\dots
7
,
0.625
,
3.
6
,
121
,
0.1010010001
…
, how many of them are irrational? a)
4
4
4
b)
2
2
2
c)
1
1
1
d)
3
3
3
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