亲爱的网友:B= m=3y=cosx=sin(x 丌/2)
问题描述:
亲爱的网友:B= m=3y=cosx=sin(x 丌/2)
4〔x-2〕⒉-1=8f{x}=lg{2x -3}
答
AD=AB BD=AB BC/2AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)比方n2 2n-n2 2n=150比方AD=AB BD=AB BC/2