Question

qq

例題21三角函數求解🙏

67264
例題21
=b²+(²-9²=bc
圓內接四邊形 ABCD中,AB=1,BC = 2,CD=3,DA = 4,則 AC = 【
B 0² (+5²-2-/12-198
D
3
C
2
0²²-5-4 205/8=254=4 205B
26.2
S
-20= 28c0513, CUSB = 77²
2051-68
/385
7
1
334422.3.4-07
=24/6-DAY-0038
2/25-248-2018
225 +241058
35 7/11/1
9-8 7²² 5-4 C²SB ² 5+²===
20