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Is there any shortcut method to know a number is square or not?
Wiki User
∙ 13y ago
Take LCM of a number and if the LCM denominators fall in pair able group it is a perfect square. for eg: to know the whether 6084 is square number the L.C.M will be
2, 2, 3, 3, 13 & 13
so we have 3 pairs of 2, 3 & 13
therefore 6084 is a square of 2 x 3 x 13 = 78
Wiki User
∙ 13y ago
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In simple terms please explain how to use square root keys on a calculator?
type in the number you want to find the square root of, then press the square root button. if it doesnt tell you straight away, press =. ADDED: A good tip, and one I find useful, to verify you have understood the method is to try it on a number you know. So here for example, you know the square root of 4 is 2, and the square root of 100 is 10. So if you try the method and see the right answer, as the calculator can't make mistakes but can only follow your instructions, you know you have used it correctly.
How do you find the square root of a number that isn't a square?
There are a number of ways. The simplest would be to use a calculator (you probably would not know how to use log tables or a slide rule!) You could find a square root graphically; use numerical methods such as the Newton-Raphson method (not very fast but simple). There is also a method similar to long division, but that is rather complicated.
How does finding the square root of a number compare to finding the cube root of a number?
The only significant difference that I know of is that there is a method, somewhat like long division, that can be used for finding the square root. I am not aware of a similar process for a cube root.
How will you know that the root of a given number is even or odd?
Assuming you know that your number is a perfect square, the square root of an even number is even, and the square root of an odd number is odd.
If you do not know the square root of a really big number how do you know if its rational?
Assuming your number is an integer: if the number is a perfect square, the number is of course an integer, and therefore rational. If the number is NOT a perfect square, it is irrational.
How do you know a number is a perfect square?
When it can be square rooted
What are the release dates for I Know a Shortcut - 2011?
I Know a Shortcut - 2011 was released on: USA: 2011 (video premiere)
What do you know about square roots?
Every square number has a square root
Loft space of 50 cubic meters volume what is this in square feet floor space?
You can't tell. There are an infinite number of shapes the loft could have, each with a different floor area.In order to know the area of the floor, you MUST know its length AND width. There's no shortcut.
Can the square of an irrational number be rational?
The answer to this question confuses me. The square root of two is an irrational number, so obviously if the square root of two is squared it becomes two which is a rational number. Thinking of it that way then the answer is yes, the square of an irrational number can be a rational number. But . . . You had to know beforehand that the irrational number was the square root of another number. If you start out with an irrational number such as Pi you cannot square it because you cannot know the entire number in order to square it.
What is a shortcut for determining the surface area of a sphere if you know its volume?
multiply V by 3 then divide by 4pi , find the cube root of this, then square it and multiply by 4 pi
What is the square root formula?
The formula of square root is basic once you learn it. To figure out the square root of a number you must know what a square number is. A square number is the product of a multiplication problem such as 7x7, 123x123 and 14x14. So the square root of 7 is 49. A trick to figuring out the square root of a number is adding consecutive odd number to the previous problem.
