Sin(π+π/6)Sin(2π+π/6)Sin(3π+π/6).Sin(2008π+π/6)求值

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Sin(π+π/6)Sin(2π+π/6)Sin(3π+π/6).Sin(2008π+π/6)求值
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Sin(π+π/6)Sin(2π+π/6)Sin(3π+π/6).Sin(2008π+π/6)求值
Sin(π+π/6)Sin(2π+π/6)Sin(3π+π/6).Sin(2008π+π/6)
求值

Sin(π+π/6)Sin(2π+π/6)Sin(3π+π/6).Sin(2008π+π/6)求值
（sinπ×cosπ/6+cosπ×sinπ/6）×（sin2π×cosπ/6+cos2π×sinπ/6）······（sin2008π×cosπ/6+cos2008π×sinπ/6）
=（－sinπ/6）×sinπ/6×（－sinπ/6）×sinπ/6×·······×（－sinπ/6）×sinπ/6
=（－sinπ/6）^1004×（sinπ/6）^1004
=(1/2）^2008

sin 11π/6 Sin(π+π/6)Sin(2π+π/6)Sin(3π+π/6).Sin(2008π+π/6)求值 sin^2(π/3-x)+sin^2(π/6+x) 2sin π/6 =sin π/3,吗,求解释,还有-sin π/6=sin- π/6吗 化简sin^2(α-π/6)+sin^2(α+π/6)-sin^2α sin^2(a-π/6)+sin^2(a+π/6)-sin^2a 求值sin^2(α-π/6)+sin^2(α+π/6)-sin^2α sin (973/2π) ,sin (374/2) sin(374/6)求三角函数值, sin(-7π／6)求值 sinπ/2是什么意思 计算,sin(π/12)-sin(5π/12)+2sin(π/8)sin(3π/8) [Sin(6π+a)Cos(7π-a)]/[Sin(3π+a)+Sin(-π+a) 化简sin(α+β)+sin(α-β)+2sinαsin(3π/2-β)= [sin(a-6π)cos(7π/2-a)]/[sin(3π+a)+sin(a-π）】= 求Sin(π+π/6)Sin(2π+π/6)Sin(3π+π/6).Sin(2008π+π/6)的值 sin（π+π/6）sin（2π+π/6）sin（3π+π/6）.sin（2010π+π/6） sin（π+π/6）sin（2π+π/6）sin（3π+π/6）.sin（2010π+π/6）求值 已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x)