1.sin(π/4+x)*sin(π/4+x)-cos(π/4+x)*cos(π/4+x)2.cosα*cos(α+β)-sin(α+β)*sinα3.cos(α-β)*cos(β-ν)-sin(α-β)*cos(β-ν)
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/24 12:02:45
x͑10EұmFƴL,%BJ+W"NC15ڗأ.!5xd
cZJZ`;YD |)kC?N] TG]
snJbB-qCpT%.${G֠|O}GA#]
sin(x+π/4)
2sin(x+π/4)sin(x-π/4)=?
sin(x+π/4)sin(x-π/4)等于什么?
sin^2(π/4 +x)
求证:(sin 2x /(1-cos 2x) )·(sin x /(1+sin x))=tan (π/4-x/2).
f(x)=(1+cotx)sin^2x-2sin(x+π/4)sin(x-π/4)还有一题,
已知函数f(x)=(1+1 anx)sin^2x+m sin(x+π/4)sin(x-π/4)
已知sin(x+π/6)=1/4,求sin(5π/6-x)+sin^2(π/3-x)
根号2sin(x+π/4)化简
sin(x+π/4)等于多少
sin(x+π)的奇偶性sin(x+π)的奇偶性sin(x+π/2)的奇偶性sin(x+π/4)的奇偶性
sin(阿尔法-π/4)
sin(-π/4)求值
f(x)=sin²(x+π/4)-sin²(x-π/4)是
函数f(x)=2sin(x+π/4)sin(x-π/4)+sin2x的值域
求f【x】=2sin[x+π/4]sin[x-π/4]+sin2x的最大值
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
定积分0到π x*((sin(x))^2-(sin(x))^4)^(1/2)