求值:sin(arcsin1/5+arccos1/3)
问题描述:
求值:sin(arcsin1/5+arccos1/3)
helphelphelp
答
原式=sin(arcsin1/5)cos(arccos1/3)+
cos(arcsin1/5)sin(arccos1/3)
=(1/5)*(1/3)+()
下次再写,没时间要走啦