若f(x)=2tanx-(2sin^(x/2)-1)/(sin(x/2)cos(x/2)),则f(π/12)的值是

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/22 12:08:31
若f(x)=2tanx-(2sin^(x/2)-1)/(sin(x/2)cos(x/2)),则f(π/12)的值是若f(x)=2tanx-(2sin^(x/2)-1)/(sin(x/2)cos(x/2

若f(x)=2tanx-(2sin^(x/2)-1)/(sin(x/2)cos(x/2)),则f(π/12)的值是
若f(x)=2tanx-(2sin^(x/2)-1)/(sin(x/2)cos(x/2)),则f(π/12)的值是

若f(x)=2tanx-(2sin^(x/2)-1)/(sin(x/2)cos(x/2)),则f(π/12)的值是
f(x)=2tanx-(2sin^2 (x/2) -1)/(sinx/2*cosx/2)
f(x)=2tanx +cos x /(1/2 * sin x )
=2tanx +2 cotx
=2[(sin x /cos x )+(cos x /sin x)]=4/sin(2x)
将π/12带入,=8

f(x)=(1+1/tanx)sin(x)^2化简 f(x)=(lnx)(tanx)e^sin^2x,则f(x)是什么函数 已知函数f(x)=(1+1 anx)sin^2x+m sin(x+π/4)sin(x-π/4) 若f(x)=2tanx+(2sin²(x/2)-1)/(sin(x/2)cos(x/2),则f(π/12)=? 若f(x)=2tanx-(2sin^(x/2)-1)/(sin(x/2)cos(x/2)),则f(π/12)的值是 若f(x)=2tanx-(2sin^(x/2)-1)/(sin(x/2)cos(x/2)),则f(π/12)的值是 f(x)=sin(2x+π/4),若f(x)*f(-x)=1/4,x∈(π/4,π/2),求tanx的值 若tanx/tanx-1=-1 求sin(π/2+x)cos(3π/2-x) 第一步已经知道了,请写出第二步的详细过程已知函数f(x)=(1+1/tanx)sin²X-2 sin(x+∏/4) sin(x-∏/4)① 若tanx=2时,f(x)的值 ②若x属于〔π/12,π/2〕,求f(x)的取值范围f(x)=(1+1/tanx)sin^2-2sin(x+π/4)sin(x- 函数f(x)=(1+1/tanx)sin^2x-2sin(x+π/4)sin(x-π/4).若tana=2,求f(a).若x属于[π/12,π/2],求取值范围函数f(x)=(1+1/tanx)sin^2x-2sin(x+π/4)sin(x-π/4).若tana=2,求f(a).若x属于[π/12,π/2]求f(x)取值范围 提问数学难题求证:sin^2x*tanx+cos^2x/tanx+2sinx*cosx=tanx+1/tanx 以知函数f(x)=2sin(π+x)cos(π-x)-cos²(π+x)/1+sin²+sin²(π-x)+cos²(π-x) 若tanx第2问:若x∈[-π/4,π/4],解方程f(x)=1/2tanx=2,求f(x)的值 已知x∈R,f(x)=1/2sin²x(1/tanx/2-tanx/2)+√3/2cos2x已知x∈R,f(x)=1/2*sin²x(1/tanx/2-tanx/2)+√3/2*cos2x1.若0<x<π/2,求f(x)的单调的递减区间2.若f(x)=√3/2,求x的值 若tanx=2,则2sin平方x-3sin(π-x)sin(π/2-x)= 1.f(tanx)=sin(pai/6),f(cotx)=___ 2.f(x)=|cos(2x+pai/4)|+1递增区间为_____3.f(x)=2sin(2x+α+pai/6) 若0 已知x∈R,f(x)=(1/2)sin^2 x(1/tan(x/2)-tanx/2)+√3/2cos2x.(1)若0 f(tanx)=sin(π/6-x)求:f(cotx)f(tanx)=sin(π/6-x) 求:f(cotx) 函数f(x)=tanx(cos(x/2)^4-sin(x/2)^4)的最小正周期