실수(Real Numbers)

• 실수(Real Numbers)

  [AlgeoMath]

• 실수의 절댓값(The Absolute Value of Real Numbers)

  [PDF] [영상(YouTube)] [NFT]

• $|3x+2|>5$

  [PDF] [영상(YouTube)] [NFT]

• $\displaystyle y=\frac{a}{2}(x+|x|)$

  [PDF] [영상(YouTube)] [NFT]

• $\displaystyle y=\frac{a}{2}(x-|x|)$

  [PDF] [영상(YouTube)] [NFT]