KIBU2019-09-302019-09-302016-04-18http://erepository.kibu.ac.ke/handle/123456789/1690MAT 221: Calculus IIenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/MAT 221Calculus IIOther