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Proofs Without Words
Polygonal Number 多邊形數
Centered Polygonal Number 中心多邊形數
Triangular Number 三角形數
Sum of First n Odd Numbers 首n個奇數之和
Sum of First n Squares 首n個平方數之和
Sum of First n Cubes 首n個立方數之和
Sum of Squares & Perfect Square 平方和與完全平方
Difference of Two Squares 平方差 (2)
Difference of Two Squares 平方差 (1)
Area of Trapezium
Proof without words: Cosine Rule (餘弦公式)
Interior & Exterior Angles of Triangles 三角形內角和及外角
Two Squares
Proof of Pythagoras Theorem(1) 畢氏定理的証明(1)
Viviani's Theorem
Feynman's Triangle
Area of Circles 圓面積
Geometric Series: Proof without words 等比級數：無言證明
Proofs Without Words
Autor:
Alex CHIK
GeoGebra 互動數學教室
http://www.geogebra.hk
Polygonal Number 多邊形數
Centered Polygonal Number 中心多邊形數
Triangular Number 三角形數
Sum of First n Odd Numbers 首n個奇數之和
Sum of First n Squares 首n個平方數之和
Sum of First n Cubes 首n個立方數之和
Sum of Squares & Perfect Square 平方和與完全平方
Difference of Two Squares 平方差 (2)
Difference of Two Squares 平方差 (1)
Area of Trapezium
Proof without words: Cosine Rule (餘弦公式)
Interior & Exterior Angles of Triangles 三角形內角和及外角
Two Squares
Proof of Pythagoras Theorem(1) 畢氏定理的証明(1)
Viviani's Theorem
Feynman's Triangle
Area of Circles 圓面積
Geometric Series: Proof without words 等比級數：無言證明
Siguiente
Polygonal Number 多邊形數
Nuevos recursos
The 3D Space
Intersections of y=a^x and y=log(a, x)
Dividing a 2-digit number by a 1-digit number (2)
Dividing a 3-digit number by a 1-digit number (1)
Interactive Unit Circle - Exact Trig Values
Descubrir recursos
Activity 4.5- Example 3 graphing trig
HANOCH KURIAN 9-P PRO.5
#1 p 445
afgeleideFunctie
Slope Field Stitcher - Salty Tank
Descubre temas
Distribución normal
Logaritmo
Rombos
Distribución binomial
Geometría
