Trig. ratio (4)
'trig ratio' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for cosine that I've seen before include "Ratio in trigonometry" , "Trig function" , "Trig ratio" , "Trigonometric function" , "Trigonometrical ratio" .)
'trig ratio' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tangent that I've seen before include "Trig ratio" , "What people often go off at!" , "Line that touches curve without crossing it" , "Line grazing another" , "Straight line just touching a curve" .)
'trig ratio' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sine that I've seen before include "Indispensable condition" , "Opposite/hypoteneuse" , "Indefinitely, with no appointed date - . . . . die" , "Trig function" , "Trigonometric function" .)