C cooldude New member Joined Oct 9, 2011 Messages 2 Oct 9, 2011 #1 sinusoid has equation: y=9+7 cos 2ii/13 (x-4) the point at which y=5, use the intersect feature to find the value of x at this point. Please help anyone! Last edited: Oct 9, 2011
sinusoid has equation: y=9+7 cos 2ii/13 (x-4) the point at which y=5, use the intersect feature to find the value of x at this point. Please help anyone!