Several Method of Obtaining the Sequence Limit

It is well known, the limit discusses including the sequence limit, the limit of function two kinds. But I onlyask the limit from the sequence limit in view of the sequence limit primary distortion, to change into the known limit, twowith the primary transformation clamp the theorem, the conclusion principle, the definite integral law, the monotonousprinciple, series expansion, rip the sincere this formula and so on several kinds to ask the law to narrate sequence limit several kinds to ask the law.