trolls2 hw8 item5

PART A: @DIV{(μ@Sub{0}I@Sub{1}I@Sub{2}a@Sup{2});2π(d@Sup{2}-@DIV{a@Sup{2};4})}

PART B: μ@Sub{0}I@Sub{2}@DIV{m;2π(d@Sup{2}-@DIV{a@Sup{2};4})}