Secant () is a trigonometric ratio. In a right triangle with an angle , is the side of the triangle that is part of angle , and is the side opposite the right angle. Properties The reciprocal of secant is cosine (abbreviated as ), while its inverse is or . Note that secant is not being raised to the power of -1; this is an inverse function, not a reciprocal. The derivative of is , while its antiderivative is . This trigonometry-related article contains minimal information concerning its topic. You can help the Mathematics Wikia by adding to it. Retrieved from "https://math.wikia.org/wiki/Secant?oldid=23607" Categories: Trigonometry stubs Trigonometric identities Stubs Community content is available under CC-BY-SA unless otherwise noted.