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2. Law of reciprocal proportions - Wikipedia

   en.wikipedia.org/wiki/Law_of_reciprocal_proportions

   This ratio of 1.19 obeys the law because it is a simple fraction (1/3) of 3.58. (This is because it corresponds to the formula ICl 3, which is one known compound of iodine and chlorine.) Similarly, hydrogen, carbon, and oxygen follow the law of reciprocal proportions. The acceptance of the law allowed tables of element equivalent weights to be ...

3. List of trigonometric identities - Wikipedia

   en.wikipedia.org/wiki/List_of_trigonometric...

   All of the right-angled triangles are similar, i.e. the ratios between their corresponding sides are the same. For sin, cos and tan the unit-length radius forms the hypotenuse of the triangle that defines them. The reciprocal identities arise as ratios of sides in the triangles where this unit line is no longer the hypotenuse.

4. Ratio - Wikipedia

   en.wikipedia.org/wiki/Ratio

   The ratio of width to height of standard-definition television. In mathematics, a ratio (/ ˈ r eɪ ʃ (i) oʊ /) shows how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).

5. Proportion (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Proportion_(mathematics)

   A proportion is a mathematical statement expressing equality of two ratios. [1] [2]: =: a and d are called extremes, b and c are called means. Proportion can be written as =, where ratios are expressed as fractions.

6. Special right triangle - Wikipedia

   en.wikipedia.org/wiki/Special_right_triangle

   A "side-based" right triangle is one in which the lengths of the sides form ratios of whole numbers, such as 3 : 4 : 5, or of other special numbers such as the golden ratio. Knowing the relationships of the angles or ratios of sides of these special right triangles allows one to quickly calculate various lengths in geometric problems without ...

7. $344 for a coffee? Scottish farm is selling UK's most ... - AOL

   www.aol.com/344-coffee-scottish-farm-selling...

   It's an enormous price to pay for a little cup of coffee, but the man behind the pitch promises it won't leave a bitter taste behind because it comes with a sweetener: a share of a dairy farm. A ...

8. Travis and Jason Kelce Reveal Holiday Traditions: ‘After ...

   www.aol.com/travis-jason-kelce-reveal-holiday...

   Travis Kelce and Jason Kelce are ready for the holiday season.. Speaking in a new episode of New Heights with Jason and Travis Kelce podcast, released Wednesday, Nov. 20, the brothers answered a ...

9. Mnemonics in trigonometry - Wikipedia

   en.wikipedia.org/wiki/Mnemonics_in_trigonometry

   Signs of trigonometric functions in each quadrant. All Students Take Calculus is a mnemonic for the sign of each trigonometric functions in each quadrant of the plane. The letters ASTC signify which of the trigonometric functions are positive, starting in the top right 1st quadrant and moving counterclockwise through quadrants 2 to 4.