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s = v-1

= u ■ i

^X2=^XB^+V'^t

* =^X2=^X.

Ut_s = x_B+v-t_s

^{U t}s ~^{V t}s =^XB

L -{u-v) = x_B

IŁ-V

u — V

x₅ = u- i_s = u

u- V

=^XB^+V,ts = *B+^V'

Xp ■ (u - v) V ■ Xr

= X_D + V t =x_n= -- +--

s B    s 2

x₅ =x_B+v-t= x₂=

u-V u-V x_B ■ u - x_B ■ V + v ■ x_B

li — V

X* ■ U

= x_B +vt=x₂=-

u — V