Nilai xxx yang memenuhi persamaan trigonometri sin4x−cos2x=0\sin4x-\cos2x=0sin4x−cos2x=0 untuk 0°≤x≤180°0\degree\le x\le180\degree0°≤x≤180° adalah ....
{15°,45°,85°}\left\{15\degree,45\degree,85\degree\right\}{15°,45°,85°}
{30°,45°,75°}\left\{30\degree,45\degree,75\degree\right\}{30°,45°,75°}
{45°,90°,120°}\left\{45\degree,90\degree,120\degree\right\}{45°,90°,120°}
{15°,45°,75°,135°}\left\{15\degree,45\degree,75\degree,135\degree\right\}{15°,45°,75°,135°}
{15°,60°,75°,150°}\left\{15\degree,60\degree,75\degree,150\degree\right\}{15°,60°,75°,150°}