The correct question is, Why (or when) is it useful to view [math]\cos^2(x)[/math] as a composite function? In calculus, it is useful when taking the derivative of [math]f(x) = \cos^2 x[/math] to recognize that [math]f(x)[/math] is a composition of two functions whose derivatives we (presumably) already know.
In law, fraud is deliberate deception to secure unfair or unlawful gain. Fraud is both a civil wrong (i.e., a fraud victim may sue the fraud perpetrator to avoid the fraud and/or recover monetary compensation) and a criminal wrong (i.e., a fraud perpetrator may be prosecuted and imprisoned by governmental authorities).n common law jurisdictions, as a criminal offence, fraud takes many different forms, some general (e.g., theft by false pretense) and some specific to particular categories of victims or misconduct (e.g., bank fraud, insurance fraud, forgery).
Examples of FRAUD. 1  He was found guilty of bank fraud. 2  He was the victim of an elaborate fraud. 3  He claimed he was a licensed psychologist, but he turned out to be a fraud. 4  The UFO picture was proved to be a fraud.ull Definition of FRAUD. 1. a: deceit, trickery; specifically: intentional perversion of truth in order to induce another to part with something of value or to surrender a legal right b: an act of deceiving or misrepresenting: trick. 2.