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How do I show that sin(arccos(x))= the square root of 1-x^2? and cos(arctan(3/x))= x/the square root of x^2+9?
Started by: ohwhatsherface
(2 posts, 925 views) Last 14 years ago
Site Poll - Chat Box 156 - Fantasy vs. Reality
Started by: lambchopsil
(41 posts, 6547 views) Last 14 years ago
[Poll] What do you think of long distance relationships?
Started by: Chibiwind
(19 posts, 2786 views) Last 14 years ago
Fictional characters you relate to most
Started by: DorkFishOK
(6 posts, 1238 views) Last 14 years ago
Site Poll - Chat Box 155 - Choosing an Honorific
Started by: lambchopsil
(50 posts, 9992 views) Last 14 years ago


