. in da let k = trg, k9o» k180 270. write hrgo in the form xh,| where x ek. write dr290 in the form xd, where x e k. write r,,v in the form va, where .x e r.

. In Da let K = tRg, K9o» K180 270. Write HRgo In the form xH,| where x EK. Write DR290 in the form xD, where x E K. Write R,,V in the form Va, where .x E R.