1806
a0 a1
1 a2 a3
1(30 a4 ) (a) a5a7a6 R a8a10a9 3 a11a13a12a13a6 0 a14a16a15a10a17 A a8a10a9 3 a11a13a18a10a9 1 a11a13a19a10a9 2 a11a13a8
a20a13a21a13a22a13a23
a14a16a24a13a25 A a8 3 a11a13a18
a20a13a21a13a26a10a27
a8a13a28
(b) a29a10a9a7a30a10a31a13a32a7a33a13a34a13a14a16a35
2
64 1 2 1 b0 a 4 1 8 2b
a9 3 a11
3
75
a36 R
a37 A a8a10a9 2 a38a13a39a13a18a13a40a13a33a13a38a13a14a16a41 a = 4 a28a16a42a13a43a10a32a7a33a13a14a16a44
2
64 1 2 0 8 b0 0 1 2b 8
0 0 0 0
3
75
a19 R a45a13a46a13a44 b = 5 a28
(c) a47a49a48
a36a7a50a13a51 x
2 a19 x4 a6 1 a19 0 a14a7a52a13a53a13a54a13a55a13a28a7a56 Rx = 0 a14a7a44a13a57a13a58a10a59a13a60a7a56
x = c
2
66
64
2
1
0
0
3
77
75 + d
2
66
64
3
0
2
1
3
77
75
a25 A a19 R a8a16a11a10a59a13a60a7a19a13a58a10a59a13a60a7a61a13a18a13a30a13a62a13a8a13a28
1
2(30 a4 ) (a) a32a7a33a13a34a13a14a16a44 2
64 1 2 30 3 3
0 0 c 8
3
75
a15a10a17a13a63 c = 8 a64a13a65a10a66a7a39a13a67a13a68a13a28
(b) a63 c a39a70a69a70a71 8 a64a70a14a72a65a73a66a74a67a70a68a70a14a72a75a70a8a70a76a70a6 3 a28a72a15a73a17a74a75a70a8a70a58a73a59a70a60a74a77a70a6a70a58a73a78
a51
a14
a75a13a8a13a38a10a59a13a60a7a6 R3 a28a16a79 A 1 a80 a62a13a81a13a82a13a28
(c) a83a13a84a10a32a7a33a13a85a13a86a10a87a7a44a13a57a13a8a13a88a13a89a13a14a16a90
A =
2
64 1 0 01 1 0
2 2=3 1
3
75
2
64 1 2 30 3 3
0 0 12
3
75
a28
2
3(40 a4 ) (a) a29a13a91a13a30a13a11a10a87a7a92a13a93a13a29a13a30a13a94a13a40a13a33a13a14a95a15a10a17 r = m a25 A a8a13a38a10a59a13a60a7a18 Rm a28
(b) a5a7a6a13a61a13a35 r n a14a16a96a13a25a13a97 (a) a37 r = m a14a16a15a10a17a7a98a13a35 m n a28
(c) a47a13a99a13a8a13a11a13a100a13a101a13a18 [2; 5] a8a13a102a13a103a13a14a16a104a13a81
A =
2
64 2 54 10
0 0
3
75
a14a105a90a13a38a10a59a13a60a7a29 R3 a8
a36
a9a7a30a13a38a13a8a13a15a13a35a13a102a13a103
a22a13a106
a8a13a107
a20a13a108
a14a105a58a10a59a13a60a7a29 R2 a8
a36
a58a13a56"
5=2
1
#
a8a13a15a13a35a13a102a13a103
a22a13a106
a8a13a107
a20a13a108
a28
(d)(c) a8a13a58a10a59a13a60a7a56a13a109
a108a13a110
a56
"
1
0
#
a44a13a57a13a111a13a56
x =
"
1
0
#
+ c
"
5=2
1
#
3