TheRaggedyDoctor
  • TheRaggedyDoctor
I need help understanding radicals.
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
An nth root. A radical expression involving roots. The radical symbol (√), used to indicate the square root and other roots. Radical of an algebraic group, a concept in algebraic group theory. Radical of an ideal, an important concept in abstract algebra.
TheRaggedyDoctor
  • TheRaggedyDoctor
Um.. what am I supposed to know with that?
TheRaggedyDoctor
  • TheRaggedyDoctor
That doesn't help me solve them.

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skullpatrol
  • skullpatrol
Please post a specific question involving them that you do not understand :)
TheRaggedyDoctor
  • TheRaggedyDoctor
It's not really a specific one, though. It's just the concept of radicals that I don't understand.
skullpatrol
  • skullpatrol
They are an extension of the idea of positive and negative integer exponents generalized to include fractions.
UsukiDoll
  • UsukiDoll
one rule is that we can NEVER have negative signs inside the radical... that produces an imaginary number.
welshfella
  • welshfella
when simplifying radical expression treat the radical like a variable:- 3x + 2x = 5x 3 sqrt2 + 2 sqrt2 = 5 sqrt2
skullpatrol
  • skullpatrol
$$\Huge a^{-n}=\dfrac{1}{a^n}$$ this^ extends the idea of positive integer exponents to includes the negative integers, right?
skullpatrol
  • skullpatrol
"the concept of radicals" is to go one more step and let n be a fraction :)
skullpatrol
  • skullpatrol
http://en.wikipedia.org/wiki/Nth_root

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