Video solusi : Nilai x yang memenuhi (sin x)/(1-cos x)=(1+cos x)/(cos (1)/(2) x) adalah ....
(A) {(pi)/(2)+4 k pi ; (5)/(3) pi+4 k pi}_(k in {Z))
(B) {(pi)/(2)+4 k pi ; (5)/(4) pi+4 k pi}_(k in {Z))
(C) {(pi)/(3)+2 k pi ; (5)/(3) pi+3 k pi}_(k in {Z))
(D) {(pi)/(3)+3 k pi ; (4)/(3) pi+4 k pi}_(k in {Z))
(E) {(pi)/(3)+4 k pi ; (5)/(3) pi+4 k pi}_(k in {Z))