Table of Contents

1. radicals: principal roots and approximating roots

  • radicals = expressions containing radical symbols. This is the opposite of exponents

1.1. Parts

1.1.1. Radical sign

  • its like a division sign

1.1.2. index

  • small number outside the radical sign
  • tells you what root you are looking for
  • if it has no index, use 2 and above
  • these are always positive

1.1.3. radicand

  • number inside the radical sign
  • this is to extract

1.2. Application

  • this is used in capentry, masonry, and engineering

1.2.1. Principal roots

  • the principal square root is the POSITIVE ROOT of a nonnegative number
  • give the positive number if principal root is being asked

1.3. estimating square roots

  1. Examine the units digit, this will give you a clue about the last digit of the square root
  2. drop the last two digits, this will give you a clue about the first digit of the square root1
  3. combine uwu

1.4. approximating roots

  • you cant get this, you never will :)
  • uh approximate (like 17's square root is 4 and 5)

Author: Rori Red

Created: 2022-02-01 Tue 10:59

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