Classify rational and irrational number - under root5
Answers
Answered by
0
Answer:
Step-by-step explanation:
Classify the following number as rational or irrational:-
(i) 2−
5
(ii) (3+
23
)−
23
(iii)
7
7
2
7
(iv)
2
1
(v) 2π
Answer
(i) 2−
5
:
Since
5
is an irrational number, 2−
5
is also an irrational number.
(ii) (3+
23
)−
23
:
(3+
23
)−
23
=3+
23
−
23
=3, which is a rational number.
(iii)
7
7
2
7
=
7
2
:
7
7
2
7
=
7
2
, which is a rational number.
(iv)
2
1
:
Since
2
is an irrational number,
2
1
, which is also an irrational number.
(v) 2π:
Since π is an irrational number, 2π is also an irrational number
Similar questions