Thus, cos ɸ is the ratio of the leg adjacent to ɸ and the hypotenuse, and sin ɸ is the ratio of the leg opposite ɸ and the hypotenuse. The arc AB of the circle is called the first quadrant of the circle, and the arcs BA’, A’B’, and B’A are called the second,...
secθ=98,tanθ<0 Signs of Trigonometric Ratios: In trigonometry, a trigonometric ratio can be positive or negative, depending on the quadrant in which it is considered. The standard sign conventions are given below: Quadrant I: All are positive. Quadrant II: Only sinθ and csc...
In the fourth quadrant,Cos is positive, in the first,All are positive, in the second,Sin is positive and in the third quadrant,Tan is positive. This is easy to remember, since it spells "cast". Related Angles The sines, cosines and tangents of some angles are equal to the sines, cos...
This same search is evident in the more successfol drama Under Coyote's Eye (Quadrant Editions), by Henry B&d. In poetic prose and evocative stage pictures, Bds$el projects onto the stage the mind of the last male of the yahl Indians, Ishi, who must dcclde whether to father children ...