find the square root of the following numbers using all three methods (prime factorization method) (Repeted subtraction method) (Long division method) (i) 529 (ii) 729 (iii) 842 (iv) 900 (v) 289 (vi) 169
Answers
Step-by-step explanation:
Finding Square root through repeated subtraction. To find Square root, we subtract consecutive odd numbers from number till we obtain 0. Square root = Total numbers subtracted.
Steps of Long Division Method for Finding Square Roots:
Step I: Group the digits in pairs, starting with the digit in the units place. Each pair and the remaining digit (if any) is called a period.
Step II: Think of the largest number whose square is equal to or just less than the first period. Take this number as the divisor and also as the quotient.
Step III: Subtract the product of the divisor and the quotient from the first period and bring down the next period to the right of the remainder. This becomes the new dividend.
Step IV: Now, the new divisor is obtained by taking two times the quotient and annexing with it a suitable digit which is also taken as the next digit of the quotient, chosen in such a way that the product of the new divisor and this digit is equal to or just less than the new dividend.
Step V: Repeat steps (2), (3) and (4) till all the periods have been taken up. Now, the quotient so obtained is the required square root of the given number.
Answer:
Estimation method :-
In this method, first find the unit digit of square root from the unit digit of given number using the following table. Discard the last two digits and then check between which two squares the remaining numbers lie.
Step-by-step explanation:
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