Brahmagupta's identity states that performing this operation on two square numbers results in a closed set under multiplication. This operation is repeatedly performed on terms in the Taylor polynomial for the hyperbolic cosine function, and the tip-
Brahmagupta's identity states that performing this operation on two square numbers results in a closed set under multiplication. This operation is repeatedly performed on terms in the Taylor polynomial for the hyperbolic cosine function, and the tip-to-tail method or the parallelogram method is used when performing this operation on two or more vectors. Performing this operation on a sequence of numbers turns it into a series, which is represented with an uppercase sigma. For 10 points, name this mathematical operation that is the inverse of subtraction.
Brahmagupta's identity states that performing this operation on two square numbers results in a closed set under multiplication.