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Byju's Answer
Standard VIII
Mathematics
Identities of Mathematical Operations
Question 124i...
Question
Question 124(iv)
Name the property used here:
−
2
7
+
0
=
0
+
−
2
7
=
−
2
7
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Solution
Additive identity property.
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Similar questions
Q.
The property under addition used in each of the following are
(i)
(
−
3
7
)
+
1
9
=
1
9
+
(
−
3
7
)
(ii)
4
9
+
(
7
8
+
1
2
)
=
(
4
9
+
7
8
)
+
1
2
(iii)
8
+
7
10
=
7
10
+
8
(iv)
(
−
7
15
)
+
0
=
−
7
15
=
0
+
(
−
7
15
)
(v)
2
5
+
(
−
2
5
)
=
0
(i) Commutative
(ii) Associative
(iii) Commutative
(iv) Additive identity
(v) Additive inverse.
Q.
Question 5(ii)
Name the property under multiplication used in each of the following:
−
13
17
×
−
2
7
=
−
2
7
×
−
13
17
Q.
The property under multiplication used is:
−
13
17
×
−
2
7
=
−
2
7
×
−
13
17
Q.
Using the property of determinants and without expanding.
∣
∣ ∣
∣
2
7
65
3
8
75
5
9
86
∣
∣ ∣
∣
=
0
Q.
Which property is being used in the following
2
3
+
4
7
=
4
7
+
2
3
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Identities of Mathematical Operations
Standard VIII Mathematics
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