<prompt> Bala palo eohle ea metsoako e ka bang teng ea k ho tsoa sehlopheng se nang le likarolo tsa n.n 4, k 2  <response>: Instruction in English: Compute the total number of possible combinations of k elements from a set containing n elements. . Response in English: The total number of combinations of k elements from a set of n elements is calculated using the formula n choose k or nCk, which is read as n choose k. n choose k is calculated using the formula n! k! n-k!, where n! means n factorial. n! is calculated by multiplying all positive integers less than or equal to n, n!nn-1n-2...1. For n 4 and k 2, we have:nCk 4C2 4! 2! 4-2!Calculate the factorials first, then substitute them into the formula:4! 4 3 2 1 242! 2 1 24-2! 2! 2 1 2Therefore, our equation becomes:4C2 4! 2! 4-2! 24 2 2 24 4 6So, the total number of combinations of 2 elements from a set of 4 elements is 6. . Response in Sesotho: Palo eohle ea motsoako oa likarolo tsa k ho tloha sehlopheng sa likarolo tsa n e baloa ka mokhoa oa n khetha k kapa nCk, e baloang e le n khetha k. n khetha k e baloa ho sebelisoa foromo ea n! k! nk!, moo n! e bolela n factorial. n! e baloa ka ho atisa palo e feletseng ea positi ka tlase ho kapa ho lekana le n, n!nn-1n-2...1. Bakeng sa n 4 le k 2, re na le: nCk 4C2 4! 2! 4-2! Bala lifektheri pele, ebe u li kenya sebakeng sa foromo: 4! 4 3 2 1 24 2! 2 1 2 4-2! 2 ! 2 1 2 Ka hona, palo ea rona e fetoha: 4C2 4! 2! 4-2! 24 2 2 24 4 6 Kahoo, kakaretso ea motsoako oa likarolo tse 2 ho tloha sehlopheng sa likarolo tse 4 ke 6. 