How many and which values of satisfy in the interval ?
MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry
Problem
How many and which values of x satisfy sin3x=sinx in the interval 0≤x<2π?
(a) {0,4π,43π,2π,45π,47π}
(b) {0,4π,43π,π,45π,47π}
(c) {4π,43π,45π,47π}
(d) {0,4π,43π,45π,47π,2π}