6 Aat a a tatat avtat a ta attaatt \(T\) a taa \(t\) tata a \(a t\) at a ta \(t\) a \(t T \quad\) tt a tat ta tt at
- tat tattatva
Tt \(t\) ta a \(t\) xt \(t\)
a \(t\) tat aat \(T\) ta \(t t\)
a ta at av t tt t ta - tt tt
ta t ta a atta \(t\)
a at t tt t ta a t vta
t t at T at