RSS Feed (xml)

Powered By

Skin Design:
Free Blogger Skins

Powered by Blogger

Saturday, September 6, 2008


Definition of a radical

When people talk of a "square root," they're referring to a radical with a root of 2. This is mathematically equivalent to a number raised to the power of 1/2. This equivalence is useful to know when using a calculator to determine a strange root. Suppose for example you needed to find the fourth root of a number, but your calculator lacks a "4th root" button or function. If it has a yx function (which any scientific calculator should have), you can find the fourth root by raising that number to the 1/4 power, or x0.25.

It is important to remember that when solving for an even root (square root, fourth root, etc.) of any number, there are two valid answers. For example, most people know that the square root of nine is three, but negative three is also a valid answer, since (-3)2 = 9 just as 32 = 9.

Properties of radicals

Related Posts by Categories

Electronics Hoctro | Electrical

No comments:

Post a Comment

Please give valuable comments on this post.

Blog Archive

Recent Posts