a、b、c、是三角形ABC三边,a、b、c、满足等式:b的平方=（c+a)(c-a),且5b-4c=0.求sinA+sinB的值
来源：学生作业帮助网 编辑：作业帮 时间：2024/08/14 10:01:09
xWM +%or3"=s7k)=_Gz_<~ϟ?5x{W>z}(|B'/?JwYZ=Qۃγ ҏ%m'\ןޓ?-N5 /Ž}qg_-'+U|ʚBbe /3W_^k uRr$\+RO:A*zgH
51Q \;F2YDٲ&cHj*1S삛[(J1$V7*h CIP ,U@DŽcn(/´j}' ;A7 8ÿ2nl/ 6@r5 z0SbyA[-@Xr WxMP98b,n:
c5)7hS uj+qg錻¤z]9Ӑ~V m?I/9yf)0]"GyCdz`ܘ@5d2,h'H%rػI [ +hDhAD 8:]N#uuNW J4;+y,Ihqq`sı iG@2b Qeؐ +!¸ioCu+A:i!>hnVACbHp uE߫A'sj u$ 0q
H+) Y Z̀^ ύ 1(=Te S7*ƤYRX7rT*舗]i8b/=htۢ0*DR )4!0K,نB
os @7YH!U6$Q e?vrf B~LJ K 4E iFP n$ }$9&YdP3 s"./q& 9<+irS,q rqMiPR!`YWmRPz"΅t%JXs܁20n ;J23i|N7r<.0{s\V>Т:[ϸ:Q~H utVmሰS/YܽCx<{Gxr W/n"zH vas媑^c5)] H'w
t
B5 'odںβ<0 ˭#~}QM/<(1U7 B&P(`k
^e"?Kn;}% ~飿c7