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From Karnataka Open Educational Resources
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What about the numbers which comes in between the two square numbers?
 
What about the numbers which comes in between the two square numbers?
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If we see the numbers 5^2=25 and 6^2=36 there comes many natural numbers between 25 and 36 but we can notice that there is no natural number between 5 and 6 so,the numbers which comes in between two perfect squares or square numbers are called non perfect squares   
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If we see the numbers 5^2=25 and 6^2=36 there comes many natural numbers between 25 and 36 but we can notice that there is no natural number between 5 and 6 so,the numbers which comes in between two perfect squares or square numbers are called non perfect squares
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How to find square of a negative numbers?    
    
=== Evaluation ===
 
=== Evaluation ===
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# The product obtained is 16 then how many beads are supposed to be taken?
 
# The product obtained is 16 then how many beads are supposed to be taken?
 
# Name the perfect square between 20 and 30?
 
# Name the perfect square between 20 and 30?
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# What is the square of 0?
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== Finding square of a negative number ==
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As we have already learnt how to find a square of a natural number,suppose if there is any integer -2.
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How do we find its square?
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Do we have the square of negative integers also?
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To answer all these questions let us recall the squaring of a natural number
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consider 3^2,we can write 3^2 as 3*3 which is 9
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similarly let us take any negative integer such as (-4)^2,
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We can write this as (-4)*(-4), when we use the rules of multiplication of two negative integers the product becomes positive such that [-*-=+]then the square also becomes positive.
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