How does that A S T C thing go? trig?
Which quadrants stand for which trig ratios, where they are positive at? How does that A S T C thing go?
- Ed ILv 79 years agoFavorite Answer
There are many versions, among which are....
All Scholars Take Calculus
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All functions are positive in Quadrant I
sin (and csc) in Quadrant II
tan (and cot) in Quadrant III
cos (and sec) in Quadrant IV
- 9 years ago
I use "All Star Trig Class"
This means that in Quadrant I "all" the sine, tan and cos are positive
In Quadrant II "star" only sine is positive
In Quadrant III "trig" only tan is positive
In Quadrant IV "class" only cos is positive
Check out this note page: http://teachers.henrico.k12.va.us/math/ito_08/07Ba...
Hope that helps...good luck!