What would be in the box? I'm looking for an answer in terms of things like csc, sec, tan, etc. i think it's sec^2 but i'm not sure. thanks!
Follow Math Help Forum on Facebook and Google+
Originally Posted by gobbajeezalus What would be in the box? I'm looking for an answer in terms of things like csc, sec, tan, etc. i think it's sec^2 but i'm not sure. thanks! Hi gobbajeezalus, It is indeed sec^2. Since $\displaystyle \tan^2(x)$ $\displaystyle =\frac{sin^2(x)}{cos^2(x)}$ $\displaystyle =\frac{1-cos^2(x)}{cos^2(x)}$ $\displaystyle =\frac{1}{cos^2(x)}-\frac{cos^2(x)}{cos^2(x)}$ $\displaystyle =sec^2(x)-1$
View Tag Cloud