C-04-Q017mediumsingle_mcq(ab)n=?(ab)^n = ?(ab)n=?aan⋅bna^n \cdot b^nan⋅bnban+bna^n + b^nan+bnca⋅bna \cdot b^na⋅bnd(ab)1/n(ab)^{1/n}(ab)1/n