6.166.6.166 .6.166. Calculate the total splitting Δω\Delta \omegaΔω of the spectral line 3D3→{ }^{3} D_{3} \rightarrow3D3→ →3P\rightarrow^{3} P→3P in a weak magnetic field with induction B=3.4kGB=3.4 \mathrm{kG}B=3.4kG