sina+cosa=1/5(0
来源：学生作业帮助网 编辑：作业帮 时间：2024/12/01 13:24:47
xPN0~F;&28[Gd H.UX:ƂHءЈ.Lw}}wE]6ʊ%svR^Le%!}m;߽ص+>PH]'% aP&lj[
q~$aVsu @8vT /5a2UiĿW/]쮿ͳ\=\JD8OINJ_j͙$oC̤Zf:ԓ v24
sina+cosa=1/5,0
已知sina+cosa=1/5,0
设sinA+cosA=1/5,0
sina+cosa=1/5(0
sina+cosa=-1/5,0
知sina+cosa=1/5,0
已知sina+cosa=1/5,0
已知sina+cosa=-1/5,0
sina+cosa=-1/5,0
sina+cosa=1/5(0
已知sina+cosa=1/5,0
已知sina+cosa=1/5(0
已知sina+cosa=-1/5(0
已知3sina+cosa=0求（1）（3cosa+5sina）/sina-cosa（2）sina+2sinacosa-3cosa
已知,5sina+2cosa=0,求sina*cosa
已知12sina+5cosa=0,求sina,cosa
已知sina+cosa=1/5,则sina*cosa=
已知sina+cosa=1/5求sinacosa,sina-cosa