如图,AB=AC,∠ABC=a,EC=ED,∠CED=2a,P为BD的中点连AE、PE.(1)过B作BF//DE交EP的延长线于F,求证:BF=CE(2)当a=60度时,求证:AE=2PE
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/17 22:17:59
x͒OPBB
Yo.I{{ܶ+
c#ą8F|cB/`ۍ']`os{?fL4-lŴf"%<$
k٣h3~2
f.uhr$ɦQuAN.019>[&t^YoQ=L'ebťoUpҌjx ٙڪgKkk)ZX9x+R9`YiNuCHVpCf0/BG3 Mejd_
C*Py!|E(aaPbѲE!R]bQ
@Qj.CCWtM[boI6wWQoτ/_b_?h0*[㝺HaJV|܉o
Dh"ir
̜M"`3 P:7
'UvjUW
'Eԙ*Ի_q۰v:dN
$o<$FI'w@,> Qzo_̛yWQP/L[M1SjU2 g.5(