SOLUTION: what does y=coto mean in algebra

Question 877372: what does y=coto mean in algebra
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
I will take a guess although never saw or heard of that before.

c for cosine
o for opposite (?)
t for tangent
tangent = sine/cosine

An angle of a triangle, placed onto a unit circle, or onto cartesian system with vertex at the origin, and one of the sides along the x-axis will give but this is not enough. y would be the sine of the angle whose vertex is at the origin. Some length information is needed if y is not expected to be restricted to plus or minus 1.
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