Fot
1

^s &ą fifit fi* ~ Giffijkfiu    “

^s^lAA +Gi\fixkfiv +&nfitkfi\i +&nPvtPv

Pn ~&xPnfin ^{+ t}xAfiuPl2 ⁺ $22$2 )⁺ GyPnPn *

= <T„(“ sin flr)(- sin a)+<r₁₂[(- sin a)cosflr + cos a(- sin a)J+ ^jcosflrcosflr = •<f_nsai²ar-a_l2siB2£r+^₂cos²flr

a, +o_y a, -a_y

0 ---i+-—co$2a+t_n sm2a

2 2 ’

i . ₂ l~co$2a , l+cos2a bo sin a*—, cos' a =

Gg^G* Gx "“Gp    «    , -

o, *—y^~~~2**^{2    %}* ^Sm2a

<T.-(T_r

t- c - —    ' $m2a + x„, cos 2a