NCERT Class 7 Solutions: Integers (Chapter 1) Exercise 1.3–Part 1

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Q-1 Find the each of the following products:

Solution: When multiplying the numbers some of which are negative, do the multiplication without accounting for sign. Then put the sign on the result according to following rules:

1. Zero property of multiplication: Also called the zero product property. There exists a unique number, zero, such that the product of any real number x and 0 is always equal to 0

Q-2 Verify the following:

Solution:

1. Hence

2. Hence

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