1.5 = _____ ? *
what isthe correct answer
Answers
Answer:
What is the correct question..
Here, what we have to do
Answer:
(
i
)
2
−
√
5
Steps:
The sum or difference of a rational number and an irrational number is always irrational.
Here
2
is a rational number and
√
5
is an irrational number. Hence
2
−
√
5
is an irrational number.
(
i
i
)
(
3
+
√
23
)
−
√
23
Steps:
By simplifying we get only
3
.
3
=
3
1
,
which is in the form of
p
q
,
Hence is
(
3
+
√
23
)
−
√
23
a rational number.
(
i
i
i
)
2
√
7
7
√
7
Steps:
2
√
7
7
√
7
=
2
7
,
which is in the form of
p
q
,
Hence
2
√
7
7
√
7
is a rational number.
(
i
v
)
1
√
2
Steps:
1
√
2
=
1
√
2
×
√
2
√
2
=
√
2
2
=
1.414
…
2
=
0.702
…
…
is a non - terminating, non-recurring decimal and therefore it is irrational. Hence
1
√
2
is an irrational number.
(
v
)
2
π
Steps:
2
π
=
2
×
3.1415...
π
is an irrational number whose value is non-terminating and non-recurring.
2
is a rational number.
Product of a non-zero rational number and irrational number is an irrational number.
Hence
2
π
is irrational.
Step-by-step explanation: