Quick Answer: What Is The Positive And Negative Square Root Of 16?

Is the square root of negative 16 a real number?

There is no Real number whose square is −16 ..

Is 16 a perfect square?

16 is a perfect square because it can be expressed as 4 * 4 (the product of two equal integers).

What are all real square roots of 16?

For example, 4 and −4 are square roots of 16 because 42 = (−4)2 = 16. Every nonnegative real number x has a unique nonnegative square root, called the principal square root, which is denoted by √x, where the symbol √ is called the radical sign or radix.

Why square root is positive and negative?

Now, if by “square root” we mean finding a number that multiplies by itself to get c, then it can be positive or negative, because for any number n, . However, c is a length, so it doesn’t make any sense to consider a negative value.

What are the positive and negative square roots of 4?

It is called principal square root denoted by √a. √ is called the radical symbol or radix and in this example, the principal square root of 4 is 2 which is denoted by √4 = 2 because 22 = 2 • 2 = 4 and 2 are non-negative….Square Root From 1 to 50.NumberSquare Root Value21.41431.7324252.23646 more rows

How do you find the square root of 16?

The root of 16 is 4 because 4 is the equal factor for 16. We call 4 the square root of 16 and we write √16 = 4. 4 is called square root because we have to square 4 or raise 4 to a power of 2 to get 16.

What does √ mean?

square rootA square root of a number is a value that, when multiplied by itself, gives the number. … The symbol is √ which always means the positive square root.

What is the positive square root of 16?

Table of Squares and Square RootsNUMBERSQUARESQUARE ROOT131693.606141963.742152253.873162564.00096 more rows

Can a square root be negative and positive?

A square root is written with a radical symbol √ and the number or expression inside the radical symbol, below denoted a, is called the radicand. … Negative numbers don’t have real square roots since a square is either positive or 0.

Is the square root of 16 plus or minus 4?

All solutions of square roots are correctly written as plus-minus. So the square root of 16 is ±4.

Is square root of 16 a whole number?

Answer and Explanation: The square root of 16 is a rational number. The square root of 16 is 4, an integer.