Diketahui Cos a = ⅓ √3 ,hitunglah sin a,tan a,sec a,cosec a,dan cotan a?

cos a = samping / miring
cos a = √3/3
sin a = depan / miring
         = √6/3
tan a = depan / samping
tan a = √6 / √3
sec a = 1/cos
sec a = 1/  √3/3 = 3/√3
cosec a = 1/ sin
              = 1/  √6/3
              = 3/√6
cotan a = 1/tan
              = 1/  √6/√3
              = √3/√6