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Byju's Answer
Standard VIII
Mathematics
Introduction to Square Numbers
If a natural ...
Question
If a natural number 'n' is added n times, we get
.
A
n
2
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B
n
n
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C
n+n
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D
3n
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Solution
The correct option is
A
n
2
If a natural number 'n' is added n times, we get the square of the number 'n' which can be written as
n
2
.
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0
Similar questions
Q.
If
N
denote the set of all natural numbers and
R
be the relation on
N
×
N
defined by
(
a
,
b
)
R
(
c
,
d
)
. if
a
d
(
b
+
c
)
=
b
c
(
a
+
d
)
, then
R
is
Q.
If n is a natural number then we define n! (pronounced as factorial n) to be the product
n
×
(
n
−
1
)
×
(
n
−
2
)
×
.
.
.
.
×
2
×
1
For example 4! = 4 x 3 x 2 x 1 = 24 If 6! =
a
!
×
b
!
where a > 1 and b > 1 then a + b is
Q.
Let
N
denote the set of all natural numbers and
R
be the relation on
N
×
N
defined by
(
a
,
b
)
R
(
c
,
d
)
if
a
d
(
b
+
c
)
=
b
c
(
a
+
d
)
, then
R
is
Q.
If the sum of first n even natural numbers is equal to k times the sum of first n odd natural numbers, then k =
(a)
1
n
(b)
n
-
1
n
(c)
n
+
1
2
n
(d)
n
+
1
n
Q.
If three numbers are added, their sum is
′
2
′
. If
2
times the second number is subtracted from the sum of first and third number we get '
8
' and if three times the first number is added to the sum of second and third number we get
′
4
′
. Find the numbers using matrices.
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