How to calculate the degree?

Lyudmila Fedotova
Lyudmila Fedotova
December 19, 2014
How to calculate the degree?

In mathematics, the degree of a is the number b, obtained by multiplying the number a by itself n times. This definition is denoted as:

  • b = anor b = a ^ n, where a is the base of the degree; n is an exponent.

How to count the number in the degree, learn in school algebra lessons. Therefore, each student is able to perform this operation. However, it is quite difficult for some children to understand the computing technology. However, everything is very simple.

  • For example, let a = 25, n = 4, then b = 25 ^ 4 = 25 * 25 * 25 * 25 = 390 625

You can also use to quickly calculate the powers of numbers with a given accuracy. It is usually used to calculate the powers of large numbers, because with an increase in the number and extent of the calculation becomes time-consuming.

At the same time, when raising a number to a power one should always remember the following points.

The zero degree of absolutely any number is always equal to one.

  • 7^0=1
  • (-10)^0=1
  • (1/7)^0=1

Raising a negative number to an even power (n) gives a plus sign, to an odd power (-n) it is a minus sign.

  • (-3)^2 = (-3)*(-3) = 9
  • (-3)^3 = (-3)*(-3)*(-3) = -27

When n = 2, the degree is called a square, when n = 3 is a cube.

Date: 10.10.2018, 16:04 / Views: 65394

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