In mathematics, binomial coefficients are represented as \(\binom{a}{b}\), where \(a\) is the \((a-1)^{\text{th}}\) row, and \(b\) is the \((b-1)^{\text{th}}\) number in that row, counting from the left, acting as an index.
Hockey is a team sport that incorporates balance, endurance, and hand-eye coordination. Choosing the proper hockey equipment is important to protect from injuries or dental damage. Hockey players need to drink plenty of water because the heat and weight of the equipment can cause dehydration.
Hockey puck - In underwater hockey. 1  An underwater hockey puck (originally but now rarely referred to as a squid in the United Kingdom), while similar in appearance to an ice hockey puck, differs in that it has a lead core weighing approximately 3 pounds (1.4 kg) within a teflon, plastic or rubber coating.