问4道高一数学三角函数题 急1 y=cos^2(x-π/12)+sin^2(x+π/12)的周期 单调递增区间.2 y=sinx+sin(x-π/3)的周期及值域3 cos36°*cos72°4 sin20°-sin40°/cos20°-cos40°
来源:学生作业帮助网 编辑:作业帮 时间:2024/12/02 18:02:47
xU_OP*}lڮ q4#Q {@`D@`
De/w>'"oo|h5
)Yښ%+wgg~Fy>50T E.
TqPPF<1:bRc
䔂TRemSuE{
t%z!<-O뛼_"*}+,V@dX;RRwV8O|0-/g"92PtGi >$ֳj@Q0\?֕#B#16IS1-P||ԸPe̱S
G
"8Xn
] ibf0Hs@-}6h~"yk<1H C8/aY9B%gScHFfpXFE˶<tꐱn))S5gZͤMJktM$ý9N̻]ɋ#VS16pd0yt״G5qֺ!oդbgt}#4g'OxnB;n!<
q4mu]>و&|s`3\xVwN,9$M5FkL`xi^?^lUq{$
}Z9ƅmjLw!f3aU4V +^].}k=