根号2/4sin(π/4-x)+根号6/4cos(π/4-x) 化简根号2/4就是四分之根号二
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根号2*sin(π/4-x)+根号6*sin(π/4+x)的化简结果是
根号2sin(x+π/4)化简
根号2/4sin(π/4-x)+根号6/4cos(π/4-x) 化简根号2/4就是四分之根号二
根号下2/4sin(π/4-x)+根号下6/4cos(π/4-x)
利用和(差)公式化简根号2/4sin(π/4-x)+根号6/4cos(π/4-x)
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
(根号18+根号5)x根号10 (4根号3-2根号6)÷2根号3 (5根号15-根号3/5)x根号5 (根号80+根号90)÷根号5
f(x)=根号2sin(2x+π/4)+2-根号2对称轴方程
几道初三计算题,二次根式的加减1.根号18+根号72-根号322.根号4x-根号9x3.根号27-根号12+根号4/34.(根号12-根号8)/(根号48-根号32)5.根号5-根号6-根号20+根号2/3+根号9/56.根号12-根号0.5-2根号1/3-根
求根号2/4sin(π/4-x)+根号6/4cos(π/4-x)的化简,
求证sinx-cosx=根号2sin(x-π/4)
解三角方程:根号2sin(x+π/4)=1
根号2sin(πx/8+π/4)+根号2sin(πx/8+3π/4)化简
化简sin(2x+π/3)-(根号3)sin²x+sinxcosx+(根号3)/2
sin 2x+cos 2x=根号2sin (2x+π/4)怎么得出来的,
(1)化简:根号2sin(π/4-x)+根号6cos(π/4-x)(2)sin(67°-x)cos(x-22°)+cos(67°-x)cos(112°-x)的值为
f(x)=2sinπ/4cosπ/4- 2根号3sin^2π/4+根号3
f(x)=2sinπ/4cosπ/4-2根号3sin^2π/4+根号3