设a∈R, f(x)=cosx(asinx-cosx)+co s 2 ( π 2 -x) 满足 f(- π 3 )=f(0) , (Ⅰ)求函数f(x)的单调递增区间; (Ⅱ)设△ABC三内角A,B,C所对边分别为a,b,c且 a 2 + c 2 - b 2 a 2 + b 2 - c 2 = c 2a-c ,求f(x)在(0,B]上的值域.
【简答题】【T19】 A.PLAY A SEPARATE ROLE B.WORK OUTSIDE THE HOUSEHOLD C.ELEMENTARY SCHOOL TEACHERS D.OR IN THE LABOR FORCE A.WOMEN WHO WISH TO【T13】______SHOULD NATURALLY FILL THESE JOBS B.REQUIRE EACH TO【T14】...
【简答题】What's the best way to the post office? (Use the map for orientation.) Excuse me, where is the post office, please? at the next corner. Then until you come to the traffic lights. there. The post offic...