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2. Quadrant (plane geometry) - Wikipedia

   en.wikipedia.org/wiki/Quadrant_(plane_geometry)

   Signs of trigonometric functions in each quadrant. In the above graphic, the words in quotation marks are a mnemonic for remembering which three trigonometric functions (sine, cosine and tangent) are positive in each quadrant. The expression reads "All Science Teachers Crazy" and proceeding counterclockwise from the upper right quadrant, we see ...

3. List of common coordinate transformations - Wikipedia

   en.wikipedia.org/wiki/List_of_common_coordinate...

   Note: solving for ′ returns the resultant angle in the first quadrant (< <). To find , one must refer to the original Cartesian coordinate, determine the quadrant in which lies (for example, (3,−3) [Cartesian] lies in QIV), then use the following to solve for :

4. Cartesian coordinate system - Wikipedia

   en.wikipedia.org/wiki/Cartesian_coordinate_system

   The black dot shows the point with coordinates x = 2, y = 3, and z = 4, or (2, 3, 4). A Cartesian coordinate system for a three-dimensional space consists of an ordered triplet of lines (the axes ) that go through a common point (the origin ), and are pair-wise perpendicular; an orientation for each axis; and a single unit of length for all ...

5. 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.

6. List of mathematical abbreviations - Wikipedia

   en.wikipedia.org/wiki/List_of_mathematical...

   This following list features abbreviated names of mathematical functions, function-like operators and other mathematical terminology. This list is limited to abbreviations of two or more letters (excluding number sets).

7. Royal Family Member Breaks Both Wrists in Fall Down ...

   www.aol.com/royal-family-member-breaks-both...

   Related: Meet the British Royal Family: A Complete Guide to the Modern Monarchy In the same conversation, the royal spoke publicly for the first time about the sudden death of her late son-in-law ...

8. Denise Richards Reveals Her Daughters 'Were Very Upset' She ...

   www.aol.com/denise-richards-reveals-her...

   Denise Richards is revealing what she did to get on her daughters’ bad side! The actress, 53, recently spoke with PEOPLE about her participation in the upcoming season of Special Forces: World ...

9. 36-Year-Old Mother Begged Medical Staff to 'Not Let Me Die ...

   www.aol.com/lifestyle/36-old-mother-begged...

   Related: Baby Born After Pregnant Mom Died in Fall Now Receiving 'Critical Care' in the Hospital: Police Prior to her passing, Seaman begged staff to “not let me die” and told them she was ...