This site sums up the trigonometric identities of tangent, cotangent, secant, and cosecant in the terms of since and cosine. This site mentions all the identities that should be memorized. The site shows a number of trigonometric functions such as Pythagorean formula for sines and cosines, identi...

Symbolic Logic People use science and mathematics everyday when they make decisions through reasoning. This is known as logic. The definition of logic as in Webster's dictionary is a science that deals with principles and criteria of validity of inference and demonstration, the science of ...

"Did life esist on mars?" "When will the moon be colonized?" these are just some of the questions that wander through my mind all day. fascinated by the secrets of the univese, i yearn to uncover mysteries. in order to blast open all the closed gates between knowledge and myself, i need the ...