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

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/09 04:46:09

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
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

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
V2sin(π/4-x)+V6cos(π/4-x)
=2V2[1/2sin(π/4-x)+V3/2 cos(π/4-x)]
=2V2 Sin(π/4-x+π/3)
=2V2 Sin(7π/12-x)
sin(67°-x)cos(x-22°)+cos(67°-x)cos(112°-x)
=sin(67°-x)cos(x-22°)+cos(67°-x)cos(90°-x+22°)
=sin(67°-x)cos(x-22°)+cos(67°-x)Sin(x-22°)
=sin(67°-x+x-22°)
=Sin(45°)
=V2/2

根号2sin(x+π/4)化简 根号下2/4sin(π/4-x)+根号下6/4cos(π/4-x) 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 根号2*sin(π/4-x)+根号6*sin（π/4+x）的化简结果是 化简2sin^2[(π/4)+x]+根号3（sin^x-cos^x）-1 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 利用和（差）公式化简根号2/4sin(π/4-x)+根号6/4cos(π/4-x) 求根号2/4sin(π/4-x)+根号6/4cos(π/4-x)的化简, 4分之根号2sin(4分之派-x)+4分之根号6cos(4分之派-x) 化简 化简 根号2sin(x/2)-根号6cos(x/2)的结果是 化简根号2sin(π/3-x)+根号6cos(π/3-x) f(x)=根号2sin(2x+π/4)+2-根号2对称轴方程 求证sinx-cosx=根号2sin(x-π/4) 解三角方程:根号2sin(x+π/4)=1 化简F(X)=2COSXCOSX(π/6-X)-根号3SIN^2X+SINXCOSX 已知函数f(x)=根号(sin(x/2)^4+4cos(x/2)^2)-根号(cos(x/2)^4+4sin(x/2)^2)(1)化简f(x),并求f(25π/6)(2)若0 （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