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Question

Which of the following are the methods of finding square roots?

A
Repeated subtraction
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B
Prime factorisation
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C
Long division
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D
All of the above.
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Solution

The correct option is D All of the above.
There are 3 methods to find square root of a number:
1. Repeated subtraction: The sum of successive odd numbers is a square number and the number of steps is the square root of that square number.

2. Prime factorisation: Factorising the given number to its prime factors and combining them to find the square root.

3. Long division: Exploiting division algorithm to find the square root.

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