page53

©

€?-7	42	43	44
D	• = e a = c a = a	• = e A = d	• = e A = b O-- a
E	• - d a = c O = a	• - c a - b C) = a	• = e a. - c a = a
F	• = c a = b ® = a	® = b A = d © =a	•    = c - d •    -a,
Q	• - e A = d (4J> = a	® = c a = e a-a	• = c A = b Q--a

frtJ-KAs)

44^1^$

(D-E FG&lfiU

Ufi^N44wF$:7i4

1 mm ET. E7D

(-r'7"z<n'P<\;') 30 cm

©

3rtn$

(H I-J €fl fSC)

4S4C

rausf)

Wl^O 30 rm

tiłt 4- 7(/ \- 7) 4) t"- 7"|Ł^

t4-7	42	43	44
H	® = e a -- c a = a	« - d A = e O - a	« = e A = b O a
I	• = c A - b	§> -c A - (J A = a	9 = b A-d 0 = a
J	• a d A.= c a =a	• * b a = e 0 = 3.	#    = c A = b #    = a

427"D-4