the function cos(3x-4) defined from R to R then it is 1) injective 2) surjective 3) one one onto 4) neither one one nor onto Share with your friends Share 1 Neha Sethi answered this Dear student fx=cos3x-4one one: We know that f0=cos30-4=cos-4 and f2π=cos32π-4=cos6π-4=cos1-4=cos-3So, different elements in R may have different images, Hence it is not one oneOnto: Since the values ofcos x lie between -1 and 1, it follows thatrange of fx is not equal to its co domainSo, it is not into Regards 1 View Full Answer
