A cactus (plural: cacti, cactuses, or cactus) is a member of the plant family Cactaceae,[Note 1] a family comprising about 127 genera with some 1750 known species of the order Caryophyllales.
'cot' and 'crib' In British English, a cot is a bed for a baby. A cot has high sides to prevent the baby from falling out. In American English, a bed like this is called a crib.
The cosecant is the reciprocal of the sine. The cotangent is the reciprocal of the tangent. The secant is the reciprocal of the cosine. If you have sin x = 3/5, then csc x = 5/3.E: What do csc, cot, and sec stand for in math? Does anyone know what they stand for and what they&#39;re used for? All I know is that they relate to trigonometry in some way.