Sara
Search results
Square root - Wikipedia. Notation for the (principal) square root of x. For example, √ 25 = 5, since 25 = 5 ⋅ 5, or 52 (5 squared). In mathematics, a square root of a number x is a number y such that ; in other words, a number y whose square (the result of multiplying the number by itself, or ) is x. [1] .
Learn what is a square root, how to find it using different methods, and its properties and applications. See examples of square roots of perfect and imperfect squares, decimals, negatives and complex numbers.
- A square root is a value that gives the original number when multiplied by itself.
- To find the square root, we can use four methods: Prime factorization, Repeated Subtraction, Long division and Estimation method.
- ‘√’ is a radical symbol used to denote square root of a number.
- The square root is just the opposite process of squaring a number. Suppose we square a number n, such as n 2 , then the square root of n 2 is equal...
- By using prime factorization, we can find the square root of perfect squares.
- By using the long division method, we can find the square root of imperfect squares.
Learn how to square a number and find its square root, with examples, diagrams and exercises. Discover the perfect squares, negative numbers, decimal numbers and the square root symbol.
Learn what is square root, how to find it using different methods, and how to use the square root table. Explore examples, practice problems, and download worksheets on squares and square roots.
Learn about the square root symbol, what it means to find a square root, and how to solve simple square root equations. Watch the video and read the questions and answers from other learners on Khan Academy.
- 5 min
- Square root of 4 is 2. An easier way to solve the square root for small and simple numbers like 4 is to just see which number, when multiplied twic...
- There is no such thing as a triangle root, however, there is such a thing as a cube root, which would be somewhat the same idea. You will learn abo...
- There is no real number in existence that equals the square root of -1, so humans decided to create one, called *i* . You can find more about imagi...
- Yes, square roots can create 2 answers -- the positive (principal) root and the negative root. When you are working with square roots in an express...
- Cubing simply means multiplying by itself twice. If you think of a number as a line, then squaring gives you the surface area of the square with th...
- The name kind of describes it. You’re basically finding the length of the side of a square if you know the area. For example, the square root of 12...
- Only if the minus sign is inside the square root. sqrt(-9) creates the complex number 3i -sqrt(9) just equals -3. Hope this helps.
- Sal uses a Wacom tablet and stylus.
- You won't be able to square root it because it is not a whole number. Square can either be a positive number meaning whole or, it can be 0 but neve...
- No, because if you divide a number by itself like 10 ÷ 10 then you would get 1 but the square root of 9 is 3 and if you were dividing a number by i...
Learn what square roots are, how to write them, and how to estimate and calculate them. Explore the properties and applications of square roots in math and science.
Learn how to find the square root of a number, which is the number that multiplied by itself gives the original number. Watch the video, read the transcript, and see the questions and answers from other learners.
- 1 min
- Sal Khan,Monterey Institute for Technology and Education
Related searches
Actors & Actresses
Films & TV shows starring Alexandra Goodman
Films & TV shows
