+37157 The period is 2 pi which is the usual for sin and cos
the amplitude is reduced by 1/2 from the usual amplitude of 1
it is a cosine wave
1/2 cos x
+37157 The period is 2 pi which is the usual for sin and cos
the amplitude is reduced by 1/2 from the usual amplitude of 1
it is a cosine wave
1/2 cos x
