Find the domain and range of f(x)= 1+ cos2x . Share with your friends Share 0 Brijendra Pal answered this Dear Student, y = 1+cos2xSince x can take any values so domain is x∈RNow, cos2x lies between -1 to 1 so 1+cos2x will lie between1-1 to 1+1= 0,2= RangeRegards 3 View Full Answer
