Omutangenta (the tangent function)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/18/Tangent_Function.svg/220px-Tangent_Function.svg.png)
Omuzimbi w'emiramwa gya sayansi Charles Muwanga agamba nti essomapuyisatu(trigonometry) era eriyitibwa essomampetosatu ssomo lya kibalangulo eryeyambisibwa okuzuula oluuyi oba eppeto eritamanyiddwa mu mpetosatu(triangles) era eziyitibwa mpuyisatu(trigony).Emikwataganyo egy'enjawulo egy'essomampetosatu girimu:
(i) Omusiina= Omukwataganyo ogwa siina(the sine function)
(ii) Omukosiina = Omukwataganyo ogwa kosiina (the cosine function)
(iii) Omutangenta=Omukwataganyo ogwa tangenta (the tangent function)
Okutegeera emikwataganyo orina okuwa amannya buli ludda lwa mpetosatu ennesimbu(every side of a right angled triangle).Gano ge mannya g'empuyi za mpetosatu ennesimbu:
(a) Olukontano = Oluuyi olukontana ne seppeto (the side that is opposite to angle theta) . Luno era luyitibwa "lusimba" , ekitegeeza oluuyi olwesimbu(vertical side)
(b) Olukoono = Oluuyi olukoona ku seppeto (the side that is adjacent to angle theta). Luno era luyitibwa "lugalamiro" , ekitegeeza oluuyi olugalamivu.
(c)Oluwunziko oba olwewunziko = Oludda olwewunzifu(hypotenuse). Luno era luyitibwa lusittalo , ekitegeeza nti oluuyi olusittavu(slanty side).
Weetegereze:
(i) seppeto =angle theta . Lino ly'eppeto ery'ensonga
(ii)Buli mukwataganyo gulina amannya abiri, erinnya eryewole n'erinnya eriva mu kugattika ebigambo by'oluganda:
(a) Omusiina = Omukontano =Omukwataganyo ogukontana ne seppeto
(b)Omukosiina = Omukoono = Omukwataganyo ogukoona ku seppeto
(c) Omutangenta = Omusimbagalo = Omukwataganyo gw'Olusimba n'olugalamiro