Please stop saying you "need advanced knowledge" when asking for more info. You do not tell me what I need to update the question with.

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(a) Let p be a prime and let G be the subgroup of GL(3,p) consisting of all matrices of the form 1 0 0 a 1 0 Exhibit G as a semidirect product. (b) For all relevant primes p, describe the Sylow p-subgroups of S12: list generating sets, isomor- phism types and orders. (a) Let p be a prime and let G be the subgroup of GL(3,p) consisting of all matrices of the form 1 0 0 a 1 0 Exhibit G as a semidirect product. (b) For all relevant primes p, describe the Sylow p-subgroups of S12: list generating sets, isomor- phism types and orders