D. For eachne N, let Sn = {nk : k EN}. 1. Give the roster form of the sets S1, S2, S3, S4, and S5. 2. Determine the following sets: SI US2US3, Make a generalization to determine U Sn. SI US2, S1US2 US3 US4, SI US2US3US4US5. nEN 3. Determine the following sets: SinS2, SinS2nS3, Make a generalization to determine n Sn.

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