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Rs aggarwal solutions
Integers | Integers Exercise 1B
Question 23
(-1) ×(-1) ×(-1) × … 200 times
Solution:-
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)
Question 23
(-1) ×(-1) ×(-1) × … 200 times
Solution:-
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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