Lösung 3.1:3b

Aus Online Mathematik Brückenkurs 1

Wechseln zu: Navigation, Suche

When simplifying a radical expression, a common technique is to divide up the numbers under the root sign into their smallest possible integer factors and then take out the squares and see if common factors cancel each other out or can be combined together in a new way.

By successively dividing by 2 and 3, we see that

Vorlage:Displayed math

Thus,

Vorlage:Displayed math

and the whole quotient can be written as

Vorlage:Displayed math


Note: If it is difficult to work with radicals, it is possible instead to write everything in power form

Vorlage:Displayed math

(In the last equality, we multiply top and bottom by \displaystyle \sqrt{3}.)