1.已知cos（a-π/6)+sina=4/5根號(hào)3.則sin(a-7π/6)的值是____2.已知f（x）=sin(wx+π/3)(w>0),f(π/6)=f(π/3)且f(x)在區(qū)間（π/6,π/3）有最小值,則w=___3.設(shè)x∈（0,π/2）,則函數(shù)y=[2(sinx)^2+1]/sin2x的最小值為_(kāi)...還有嗎，多來(lái)幾道！7 已知函數(shù)f(x)=2sin(Ax+B)對(duì)任意x都有f(派/6＋x)＝f(派/6-x)，則f(派/6)＝多少？8 已知函數(shù)y=2msin(x)-2cos^2(x)+(m^2)/2-4m+3的最小值為19，求m的值