(Employers may not begin the Form I-9 process until an individual accepts an offer of employment.) Forms I-9 must be kept for three years after the date of hire or one year after the date of the employee's termination, whichever is later.
Sine qua non (/ËsaÉªni kweÉª ËnÉn/; Latin: [Ësine kwaË ËnoËn]) or conditio sine qua non (plural: conditiones sine quibus non) is an indispensable and essential action, condition, or ingredient.
Definitions: The sine (or sin), cosine (or cos) and tangent (or tan) functions are defined as returning the following ratios: These ratios are functions of Î¸ because x and y change with Î¸. Graph of the tan function: The next graph shows the function tan (Î¸). In the above three graphs the angle Î¸ is measured in radians.