Introduction to Square Roots

# Introduction to Square Roots Video Lecture | Quantitative Aptitude for SSC CGL

## Quantitative Aptitude for SSC CGL

314 videos|170 docs|185 tests

## FAQs on Introduction to Square Roots Video Lecture - Quantitative Aptitude for SSC CGL

 1. What is a square root?
Ans. A square root is a value that, when multiplied by itself, gives the original number. For example, the square root of 16 is 4 because 4 multiplied by itself equals 16.
 2. How do you calculate a square root?
Ans. To calculate a square root, you can use a calculator or a mathematical formula. One common method is the prime factorization method, where you break down the number into its prime factors and then group them in pairs. The square root is the product of the prime factors in each pair.
 3. Can square roots be negative?
Ans. Yes, square roots can be negative. However, when we talk about the square root of a positive number, we usually refer to the positive square root. For example, the square root of 9 is 3, but it can also be -3 because -3 multiplied by itself also equals 9.
 4. Are square roots only applicable to whole numbers?
Ans. No, square roots can be applied to any real number, not just whole numbers. You can calculate the square root of fractions, decimals, and even negative numbers. The result may be a whole number, a fraction, or an irrational number.
 5. What is the difference between a square root and a square?
Ans. The square of a number is obtained by multiplying the number by itself, while the square root is the opposite operation. For example, the square of 5 is 25, but the square root of 25 is 5. The square operation "undoes" the square root operation.

## Quantitative Aptitude for SSC CGL

314 videos|170 docs|185 tests

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