<p>For a job seeker, a cover letter is a vital piece of document. It can make or break an applicant's chances of being hired. Many people find it a challenging task, but in reality, it is not that demanding. All you need is to know what to write and how to write it.</p>
Secx or secant of x can be written in various forms such as, sec, cosec, and or cot can be defined as a trigonometric function like, sin, cos and tan. Forms of secx include the following:
sec x = 1cos x
cosec x 1sin x
cot x = 1tan x = cos x sin x
Secant can as well be obtained from complex number: secx = 2/[e^(ix) + e^(-ix)], where i is the imaginary unit that equals to sqrt (-1). In contrast to cos(x), finding the antiderivative of secant of x needs few calculus tricks. Moreover, the antiderivative of secx has many identical forms that can puzzle students who want to see how good they are at computing.