Preface; I'm not asking for answers (that won't help me learn Maths at all!), but certainly some guidance would be very much appreciated.
I'm trying to solve some trigonometry equations from graphs, and it's all going fine; until transformations are involved.
I'm aware that a number before the $\tan,\sin,\cos$ (e.g. $3\cos$) 'compresses' the graph by a scale factor of said number. But what if there is a squared sign infront of it as well?
Example equations which I'm struggling with -
$$\cos^2(x) = 3/4$$ $$3\tan^2(x) = 1$$
Certainly with the first one, I'm in a mess already because 3/4 doesn't appear in the common trignometry values (http://www.analyzemath.com/trigonometry/special_angles_1.gif).
Thanks for reading,