Radical: The radical symbol is

used to indicate the

square root... of any number Illustration: Real Life Example: Mathematics Glossary 6B The radical symbol seems to be an angle and also a check mark History: This symbol first appeared in print,

in Rudolff's Coss in 1525,

but withoth our modern indeces. Sources: http://www.roma.unisa.edu.au/07305/symbols.htm#Radical http://en.wikipedia.org/wiki/radical Radicand: Video of Radicals The number under the

radical symbol, is the number

which is having its square root... Illustration: Real Life Example: 64 square mts 8 mts Was created by David Smith in 1958,

like we know right now,

but the first radicand was created also in 1525. History: Christoff Rudolff Sources http:// en.wikipedia.org/wiki/Square_root Index Video of Radicands The index shows how many times does the radicand must be multiplied by itself. The index is also called power or exponent. Illustration: History: Appeares in the 23th century in the babylonian (Babylon) times. Sources: http://www.mathwords.com/r/radicand.htm http://www.ehow.com/about_513780-exponents.htm Video of Index

http://www.mathsisfun.com/definitions/index-power-html Perfect Roots Perfect roots are the roots

that, give exact answers Illustration: Real Life Example: Sources:

Mathematics notebook Non - Perfect Roots Illustration: These roots are the ones in which the answer is

an irrational number Real Life Example & Sources Mathematics notebook http://en.wikipedia.org/wiki/Square_root Adding and Substracting :

Radical Expressions To add and substract radical expressions, the roots must have same radicand (number inside the radical sign) and same index (the times the radicand is multiplied by itself), then you can add or/and substract Real Life Example &

Illustration Video of add and

substract radical

expressions sources: http://www.kidsmathblog.com/adding-substracting-radicals.php http://www.intmath.com/exponents-radicals/4-addition-subtraction-radicals.php multiply and divide radical expressions we multiply and divide radicals when, both radicals have common index. real life example and

ilustration Sources: http://www.tutorvista.com/math/multiplying-and-dividing-radicals Video of

multiply and

divide radical

expressions Prime factorization to simplify

Non-perfect roots In non-perfect square root to simplify with prime factorization to its lowest terms, by breaking them down into two factors out of which one is prime. That root will be taking out of the radical sign and its answer will become a coefficient. However, if one coefficient already exists, the perfect root will multiply it. Ilustration and real

life example: Source : Mathematics notebook Video THE END By: Angie Barrera

To: Alejandro Aranzazu Thanks for watching

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# Glossary 6B — Barrera Castillo & Vargas Garcia

Glossarys of Matematics and Geometry

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