在△ABC中,角A,B,C的对边分别为a,b,c,若a=1,∠B=45o,△ABC的面积S=2,则c边长为____ ,b边长为____ .
男孩
设双曲线x2a2-y29=1a>0的渐近线方程为x2±y3=0,则a的值为( )
--- This sweater is too small. Would you mind giving me a bigger one?
--- . Here you are.