The discussion revolves around finding the sine and tangent values given that the cosine is -12/13, specifically in the context of Quadrant Two. Participants explore the relationships between the trigonometric functions and the implications of the quadrant on their signs.
Participants generally agree on the definitions and relationships of the trigonometric functions, but the initial question about finding sine and tangent remains unresolved, with no explicit solutions provided.
The discussion does not resolve the mathematical steps necessary to find the sine and tangent values, nor does it clarify the assumptions regarding the values of x and y in the context of the given cosine.
qspeechc said:Draw a diagram.
cosine = adjacent/hypotenuse = x/r
sine = y/r
tangent = y/x
x^2 + y^2 = r^2
Quadrant two means sine>0, and tangent<0.
That should be enough info to solve the problem.
Ephratah7 said:... ok, thanks. but what is ^??
HallsofIvy said:On this and many math boards, if you are just using regular letters, "^" means to the power: 2^3= 8.
Of course, here, you can also use html codes: 2[ sup ]3[ / sup ]= 8, without the spaces, gives 23= 8. Or you can use LaTex: [ tex ]2^3= 8[ /tex ], again without the spaces, gives [tex]2^3= 8[/tex]. You can see the code used for any LaTex by clicking on it. Also, there is a tutorial for LaTex in the "Homework and Coursework" section.