क्लास सेवंथ फार्मूला ऑफ मैथ
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1. Integers Formulas
Addition is commutative
a
+
b
=
b
+
a
Addition is associative
(
a
+
b
)
+
c
=
a
+
(
b
+
c
)
Product of even number of negative integers is positive
−
2
×
−
2
×
−
2
×
−
2
=
16
Product of odd number of negative integers is negative
−
2
×
−
2
×
−
2
=
−
8
Division of positive integer by a negative integer gives negative quotient
6
−
3
=
−
2
Division of a negative integer by another negative integer gives positive quotient
−
6
−
3
=
2
Not defined
a
÷
0
Defined
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