Question

candy

要問最下方的第13題
要求線段AR
好像會用到數值表 (在第二張圖)

設為統領,且V3Sing 2COST,則
設二次方程式 x + 2x+2cos a=0之二根為實根,求日的範圍為
如下圖,LC=90°,∠B=52°,AB=10,則:(1) AC = ; (2) BC=__;
(查表,以四捨五入法求至小數第一位)
12 如下圖二),AABC 中,∠C=90°,BC=64,AC=95,查表可得∠B=
(3) AABC 面積=
A
A
P
52°
B4
B
C
( 82 台北】
1. 如上圖三), AB為圓的直徑,AB=10,且AP=PQ = OR=RS = SB,
式和田锐角三角函動伯夷 或AP=

三月
ses
TESC
89
了。
86
85
:
F39
82
81
80
符”
7 78
77
769
1 0.0175 09998
0.0175
2" 0.0349 0.9994 0.0319
3 3 0.0523 0.9986 ( 0.0524
0.0699 029976 0.0699
U82
0.9962 0.0875
6 0.1045
0.1051
70
0.1219 0.9925 0.1228
8 0.1392 0.9903 0.1405
99 0.1564 029877 0.1584
100 0.1736 0.9848 07
0.1908 0.9816 0.1944
12
0.2079 10.9781 0.2126
1.
0.2350
0.9744 0.2309
0.2419
0.9703 0.2493
1
0.2588 0.9659
0.2679
16 0.2756 0.9613 0.2867
179 0.2924 0.9563 0.3057
189 0.3090
0.9511 0.3249
12 10.3255
| 0.9455 0.3443
20 0.3420 ( 0.9397 0.3640
21- 0.3584 0.9336 0.3839
22 0.3746 0.9272 6.1141)
27
3007 0.9205 04245
24
0.4069
10,9135
10.4252
25 0.4226 0.9063 0.4663
26- 0.4384
0.8988 0.4877
27 24.40 0.8910 0.5095
28 0.4695 0.8829 0.5317
29
0.4848 0.8746 0.5443
309 0.5000 0.8660 10.5774
31°
0.5150 0.8572 0.6009
32° 0.5299 0.8480 ( 0.6249
33° 0.5446
0.8387 0.6494
34 - 0.5592 0.8290
0.6745
35 0.5786 0.8192 0.7002
36 0.5878 0.8090 0.7265
37 0.6018 0.7986 0.7536
38€ 0.6157 0.7880
0.7813
2 0.6293 0.7771 0.8098
40° 0.6428 0.7660 0.8391
419 0.6567 0.7547 0.8699
420 0.6691 0.7431 0.9004
43 0.6820 0.7314 (0.9325
0.6947
0.7193
0.9657
45° 0.7071 0.7071 10000
57.990
28.626
19.081
14.301
11.430
9.5144
8.1443
7. 1154
16.3198
5.6713
5.1446
4.7046
4.3315
4.0108
3.7321
3.4874
3.2709
3.0777
2.9042
2.7475
2.6051
2.4751
2.3559
2.2400
2.1445
2.0503
1.9626
1.8807
1.8040
1.7321
1.6643
1.6003
1.5399
1.1826
1.4281
1.3764
1.3270
1.2799
1.2349
1.1918
11504
1.1106
i 0724
120355
1.0000
1.(DOUB
1.0006
10014
1.0024
1.0038
1.0055
1.0075
于 1.0098
1.0125
1.0154
1.0187
1.0223
1.0208
1.0306
1.0353
1.0403
1.0457
10515
1.0576
1.0642
1.0711
1.0785
10964
1.0946
1.1034
1.1126
1.1223
1.1326
1.1434
1.1547
1.1666
1.1792
1.1924
1.2062
1.2208
1.2361
1.2521
1 9690
1.2868
1.3054
1.3250
1.3456
1.3673
1.3902
1.4142
57.299
上班
19.107
14.336
11.474
9.5668
8,2055
7.1858
6.3925
5.7588
5.2408
4.8097
4.454
4.1836
3.8637
3.6280
3.4203
3.2361
2.0716
2.9238
2.7904
2.6695
2.5593
2.4586
2.3662
2.2812
2.2027
2.1301
2.0627
2.0000
1.9416
1.8871
1.8361
1.7883
1.7434
1.7013
1.6616
1.6243
1.5290
1.5557
1.5243
1945
1.4663
1.4396
1.4142
72
71
709
69
689
674
66
64
62
61"
E6
59°
58
56
55
54
5 53
520
51"
505
48
45"
COS
SITE
Cult
tan
*
LED
Esec