1. anonymous

1. Which of the following is true? Sine is negative in Quadrant I. Tangent is positive in Quadrant III. Cosine is positive in Quadrant III. Sine is negative in Quadrant II.

2. Nnesha

$$\huge\color{red}{\rm CAST }$$rule! |dw:1442517436157:dw|

3. Nnesha

or just remember the x,y order pair (x,y) x-coordinate = cos y-coordinate = sin tan = y/x (sin /cos)|dw:1442517710308:dw|