RS Aggarwal Solutions Class 7 Mathematics Solutions for Integers Exercise 1B in Chapter 1 - Integers

Question 23 Integers Exercise 1B

(-1) ×(-1) ×(-1) × … 200 times



Using the rule for Multiplication of integers.

= (-1)200 = 1

(∵ Multiplying one with itself is 1 only. But, for deciding whether it is to be positive or negative by

the value of powers, if it is even number the answer should be in positive or negative when it is

odd number)

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