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Question

Which of the following methods is/are useful in finding the square root of a number?


  1. Exponent method

  2. Prime factorization method 

  3. Long division method

  4. Both prime factorization and long division method


Solution

The correct option is D

Both prime factorization and long division method


There are mainly two methods which are used to find a square root of a number. 

1. Prime factorization method (This is helpful when you have a numbers with combination of prime factors and can be combined in a group of two numbers)

2. Long division method (This particular method is useful in finding square root of a decimals)

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