√ ka sq kaise nikalte hai
Answers
Answer:
•Squares of 1 and 9 are having 1 in the unit place.
•Squares of 2 and 8 are having 4 in the unit place.
•Squares of 3 and 7 are having 9 in the unit place.
•Squares of 4 and 6 are having 6 in the unit place.
•Squares of 5 has 5 in the unit place.
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●Square root of 576
●To find the square root this number, first we have to split this into two groups.
●The numbers which are in unit and ten's place in one group and the number which is in hundreds place in other group or put comma before two digits from the last number.
●Now we have to consider the first number that is 5. In the squares column 5 lies between 4 (the square of 2) and 9 (the square of 3).
●Since 4 is smaller than 5,we have to choose 2 (from the numbers column) which is corresponding to 4.
●So far,
we have found the first digit of square root of 576. That is 2.To choose the second digit we have to multiply first digit 2 by its preceding number 3.
●2 x 3 = 6 which is greater than the given number.So we have to choose the smaller number out of 4 and 6.
●Smaller number is 4.So the second digit is 4.
◆Square root if 576 is 24.
Take one more example.
√729
● Unit digit is 9 so the last number is 3 or 7
● number start with 7 .It's lies between square of 2 and 3.
So we take smallest number.
We take 2.
● 2 × 3 = 6 ( 6 is smaller than 7 so we take bigger unit digit )
● So the √729 = 27
HOPE ITS HELP YOU.
THANK-YOU.
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