The formula is feet=square root of sq.feet
VRMS = 1/N times square root of [ sum(Vn2) ]
The usual rules for "order of operation" apply. Don't forget that the square root of a negative number is an imaginary number. As an example, the square root of -9 is 3i (that is, the square root of +9, times the "imaginary unit").
akash
The square root of 20 can be found using a calculator or by using the approximation method. The exact value is √20 ≈ 4.47.
There is no formula for the square root of a number, unfortunately.
Square root of x = x^0.5
The formula is feet=square root of sq.feet
square root of 36 = 6 6 multiplied by 6 = 36 formula -> x2 = 36 (take square root of both sides) -> x = plus/minus 6
The square root of 2900 is approximately 53.85. This is found by calculating the square root of the number using a calculator or mathematical formula.
VRMS = 1/N times square root of [ sum(Vn2) ]
The usual rules for "order of operation" apply. Don't forget that the square root of a negative number is an imaginary number. As an example, the square root of -9 is 3i (that is, the square root of +9, times the "imaginary unit").
akash
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.
The square root of 20 can be found using a calculator or by using the approximation method. The exact value is √20 ≈ 4.47.
The length of a side is the square root of the area.
sqrt(x) * sqrt(x) = x