answersLogoWhite

0


Best Answer

When writing a range of numbers, square brackets are used to indicate the end number is included and round brackets are used to indicate the end number is excluded.

examples:

  • [1, 4] = all numbers ≥ 1 and ≤ 4
  • (1, 4] = all numbers > 1 and ≤ 4
  • [1, 4) = all numbers ≥ 1 and < 4
  • (1, 4) = all numbers > 1 and < 4
User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What do you use when writing the domain of real numbers brackets or squares?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Math & Arithmetic

Which numbers are not square number's?

In the complex field, every number is a square so there are no numbers that are not squares. If the domain is reduced to that of real numbers, any negative number is not a square. However, the term "square numbers" (not number's!) is often used to refer to perfect square numbers. These are numbers that are squares of integers. Therefore the squares of fractions or irrational numbers are non-squares.


What is the domain and range of y equals cubed square root of x?

The simplest answer is that the domain is all non-negative real numbers and the range is the same. However, it is possible to define the domain as all real numbers and the range as the complex numbers. Or both of them as the set of complex numbers. Or the domain as perfect squares and the range as non-negative perfect cubes. Or domain = {4, pi} and range = {8, pi3/2} Essentially, you can define the domain as you like and the definition of the range will follow or, conversely, define the range and the domain definition will follow,


What is the range of y equals 8x-3?

11


What is the range of the square root function?

The answer depends on the domain. If the domain is non-negative real numbers, then the range is the whole of the real numbers. If the domain is the whole of the real numbers (or the complex plane) , the range is the complex plane.


What is the domain of the square root of x mulitplied by x-9?

To an extent, the answer depends on what the range is. The domain can be the set of complex numbers, with the range also the complex numbers. The domain can be the whole of the real numbers if the range can be complex. If the range needs to be real, then the domain must be the real numbers excluding the interval (0,9). As the range is restricted (rational, integer), the domain will also shrink.

Related questions

Which numbers are NOT perfect squares?

In the complex field, every number is a square so there are no numbers that are not squares. If the domain is reduced to that of real numbers, any negative number is not a square. However, the term "square numbers" (not number's!) is often used to refer to perfect square numbers. These are numbers that are squares of integers. Therefore the squares of fractions or Irrational Numbers are non-squares.


Which numbers are not square number's?

In the complex field, every number is a square so there are no numbers that are not squares. If the domain is reduced to that of real numbers, any negative number is not a square. However, the term "square numbers" (not number's!) is often used to refer to perfect square numbers. These are numbers that are squares of integers. Therefore the squares of fractions or irrational numbers are non-squares.


What is the domain of a sine curve?

The domain of the sine function is all real numbers, or (-&acirc;&circ;&#382;, &acirc;&circ;&#382;). Note the curly brackets around this interval, when a domain or range includes positive or negative infinity, it is never inclusive.


What is the domain and range of y equals cubed square root of x?

The simplest answer is that the domain is all non-negative real numbers and the range is the same. However, it is possible to define the domain as all real numbers and the range as the complex numbers. Or both of them as the set of complex numbers. Or the domain as perfect squares and the range as non-negative perfect cubes. Or domain = {4, pi} and range = {8, pi3/2} Essentially, you can define the domain as you like and the definition of the range will follow or, conversely, define the range and the domain definition will follow,


Why does an inequality have 2 solutions?

An inequality, like an equation, can have a different number of solutions depending on the inequality and the domain.For example, x2< 0 has no solutions if the domain is the real numbers.x< 5 has only one solution ( = 4) if the domain consists of the squares of positive even numbers.x < 5 has infinitely many solutions if the domain is the rational numbers or real numbers.An inequality, like an equation, can have a different number of solutions depending on the inequality and the domain.For example, x2< 0 has no solutions if the domain is the real numbers.x< 5 has only one solution ( = 4) if the domain consists of the squares of positive even numbers.x < 5 has infinitely many solutions if the domain is the rational numbers or real numbers.An inequality, like an equation, can have a different number of solutions depending on the inequality and the domain.For example, x2< 0 has no solutions if the domain is the real numbers.x< 5 has only one solution ( = 4) if the domain consists of the squares of positive even numbers.x < 5 has infinitely many solutions if the domain is the rational numbers or real numbers.An inequality, like an equation, can have a different number of solutions depending on the inequality and the domain.For example, x2< 0 has no solutions if the domain is the real numbers.x< 5 has only one solution ( = 4) if the domain consists of the squares of positive even numbers.x < 5 has infinitely many solutions if the domain is the rational numbers or real numbers.


Can domain names have numerical numbers in them?

Yes, domain names can have numbers in them.


What is the range of y equals 8x-3?

11


Find the domain and range fx3x-2?

the domain is all real numbers and the range is all real numbers the domain is all real numbers and the range is all real numbers


What is the domain of logarithm and exponential function?

Domain of the logarithm function is the positive real numbers. Domain of exponential function is the real numbers.


What is the Domain and range of x 2 plus y equals 4?

To find the domain or range, solve for a variable and see if the other variable has any restrictions on it. In this case, x2 + y = 4 y = 4 - x2 There are no restrictions on x, therefore x is in the domain of all real numbers. x = square root(4 - y) Since the argument (number in brackets) of a square root must be positive, 4 - y &gt; 0, y &lt; 4. Domain: x can be all real numbers. Range: y can be all real numbers less than or equal to 4.


Can non integer numbers be part of the domain?

Yes, the domain represents all the x values on a graph. Since these x values can be non-integral numbers, the domain can contain non-integral numbers.


What the relationship between whole numbers and domain?

it is when the domain is a whole number