Which expression is equivalent to sin3x\sin 3xsin3x?
3sinx−4sin3x3\sin x - 4\sin^3 x3sinx−4sin3x
4sin3x−3sinx4\sin^3 x - 3\sin x4sin3x−3sinx
3cosx−4cos3x3\cos x - 4\cos^3 x3cosx−4cos3x
4cos3x−3cosx4\cos^3 x - 3\cos x4cos3x−3cosx