LIMIT OF A SEQUENCE: THEOREMS 115. 4.3 Limit of a Sequence: Theorems. These theorems fall in two categories. The ârst category deals with ways to. combine sequences. Like numbers, sequences can be added, multiplied, divided, ... Theorems from this category deal with the ways sequences can be combined.
 We Really Shouldn't Be Doing This  is a song written by Jim Lauderdale, and recorded by American country music artist George Strait.It was released in September 1998 as the third and final single from his album One Step at a Time. It peaked at number 4 in the United States, and number 2 in Canada.im Lauderdale told Taste of Country that the song came to him when he was living in Nashville. He was living in Buddy and Julie Miller âs apartment above their house.
This Is How We Do is a dance-pop song influenced by hip hop, having synth squiggles and melodic dots as its main instrumentation. Lyrically, it has Perry sing-talking about her hangout routine with her friends. The song's official remix featuring American rapper Riff Raff was released on August 25, 2014.