Please solve given the insteuctions on the photo please!

Table $2$

$\backslash$table$[[$smber$,\backslash$table$[[$Force in$],[$member$],[($in terms of P$)]],\backslash$table$[[$Compression $($C$,-),],[$Tension $($T$,+),$ or$],[$zero$-$force member?$]],\backslash$table$[[$Force in$],[$member$],[($with$],[P=400N$