The derivative of secx : fundamental geometric and algebraic properties of the secant trigonometric function
Nowadays, trigonometry is widely used in various fields of scientific study. However, it is a serious mistake to consider that those students, who have linked their lives with disciplines that are far from pure mathematics, should not understand the primal rules of trigonometry. In truth, this mathematical discipline finds its applications in different spheres of ordinary student’s life. Of course, one is not obliged to know how to solve a standard differential equation in order to compose an official personal statement or a literary essay. Nevertheless, various ordinary assignments require at least a superficial familiarity with the basic trigonometric principles and terms, such as the sine of the angle or the derivative of secx.