sin(-π/6)=____;sin7π?6=_____;tan(-5π/6)=_____;sin11π/6=_____
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sin(-π/6)=____;sin7π?6=_____;tan(-5π/6)=_____;sin11π/6=_____
-1/2
-1/2
根号3/3
-1/2
-1/2
根号3/3
-1/2
sin11/π*sin11/3π*sin11/5π分之sin11/10π*sin11/8π*sin11/6π 等于多少
finally=_____ ____=_____ ____ _____
6°30'18''=______°;37.145°=_____°_____'____''
1.sin(π-a)cos(-a-2π)cot(a+π)-sin平方(-a)-tan(2π-a)cota=_____
设θ为第二象限角,若tan(θ+π/4)=1/2.则sinθ+cos=_____
whenever=___ ____ _____ whatever=____ _____ ____
nine forty-five=_____ ____ ____ _____
sin7.6π,tan(-23/4π),cos(-59/17π)的三角函数价值符号,要具体过程,
函数y=sinx*sin((π/3)-x)的值域为_____
当然英语翻译_____=_____=_____
by himself=_____ _____ _____
英语翻译你不及他外向.(三种)You ____ ____ _____ _____ .=You're _____ ____