已知在三角形ABC中,AB+AC=9cm,AB和AC的夹角为30度,设当AB为x(cm)时,三角形ABC的面积为S(cm^2)(1)求s关于已知在三角形ABC中,AB+AC=9cm,AB和AC的夹角为30度,设当AB为x(cm)时,三角形ABC的面积为S(cm^2)(1)求s
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 11:20:01
![已知在三角形ABC中,AB+AC=9cm,AB和AC的夹角为30度,设当AB为x(cm)时,三角形ABC的面积为S(cm^2)(1)求s关于已知在三角形ABC中,AB+AC=9cm,AB和AC的夹角为30度,设当AB为x(cm)时,三角形ABC的面积为S(cm^2)(1)求s](/uploads/image/z/3721085-53-5.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2CAB%2BAC%3D9cm%2CAB%E5%92%8CAC%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA30%E5%BA%A6%2C%E8%AE%BE%E5%BD%93AB%E4%B8%BAx%28cm%29%E6%97%B6%2C%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BAS%28cm%5E2%29%EF%BC%881%EF%BC%89%E6%B1%82s%E5%85%B3%E4%BA%8E%E5%B7%B2%E7%9F%A5%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2CAB%2BAC%3D9cm%2CAB%E5%92%8CAC%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA30%E5%BA%A6%2C%E8%AE%BE%E5%BD%93AB%E4%B8%BAx%28cm%29%E6%97%B6%2C%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BAS%28cm%5E2%29%EF%BC%881%EF%BC%89%E6%B1%82s)
x){}KYdG哞]dZG'mGg[\ GZ. Td.cXɎN@
\gӷ ria~O糍MO[7?7p$`;1\R2}ﳩ^,_lބ{a
4_N_dTX~6
n%nho_`g3lkoaU0 Ov4