Table and Signs Easily There are few easy ways to learn the trigonometric formulas and their signs in each quadrant. There are four quadrants and ASTC techniques helps you remember if a ...

Trigonometry Formulas: There are very few topics in mathematics that trouble students more than trigonometry and calculus. In fact, it is the base of many advanced math concepts and is also ...

Solve \(\sqrt 3 \cos x + \sin x = \sqrt 2\), for \(0 \le x \le 2\pi\). First of all we need to put \(\sqrt 3 \cos x + \sin x\) into the form \(k\cos (x - \alpha ...

Many students think they've solved a trig equation when ... sin x^\circ = \frac{3}{4}\) Since this is sin and is positive this means that we will be in the two quadrants in which the sine function ...