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$($b$)$ A symmetrically loaded column is subjected to the characteristic loads as indicated in Figure Q$\mathrm{.}2\mathrm{.}3.$ Using the data given and EN $1990$: Equation $(6\mathrm{.}10)$ to determine the design loads, check the suitability of the column section with respect to compression $(($:$N_{a,Rd}$