若tan(θ+π/4)=2,则tan(2θ+π/4)等于?求详细过程!
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/15 20:22:49
若tan(θ+π/4)=2,则tan(2θ+π/4)等于?求详细过程!若tan(θ+π/4)=2,则tan(2θ+π/4)等于?求详细过程!若tan(θ+π/4)=2,则tan(2θ+π/4)等于?求
若tan(θ+π/4)=2,则tan(2θ+π/4)等于?求详细过程!
若tan(θ+π/4)=2,则tan(2θ+π/4)等于?
求详细过程!
若tan(θ+π/4)=2,则tan(2θ+π/4)等于?求详细过程!
tan(θ+π/4)
=[tanθ+tan(π/4)]/[1-tanθtan(π/4)]
=(tanθ+1)/(1-tanθ)
=2
即tanθ+1=2(1-tanθ)
解得:tanθ=1/3
tan(2θ+π/4)
=tan[θ+(θ+π/4)]
=[tanθ+tan(θ+π/4)]/[1-tanθtan(θ+π/4)]
=(1/3+2)/[1-(1/3)*2]
=(7/3)/(1/3)
=7
【中学生数理化】团队wdxf4444为您解答!祝您学习进步
不明白可以追问!
满意请点击下面的【选为满意回答】按钮,O(∩_∩)O谢谢
tanπ/4=1
所以tan(θ+π/4)=2
则(tanθ+1)/(1-tanθ)=2
解得tanθ=1/3
所以tan2θ=2tanθ/(1-tan²θ)=3/4
所以原式=(tan2θ+1)/(1-tan2θ)=7
结果是7 过程打太费劲了。。。0 0
tan(θ+π/4)=(tanθ+tanπ/4)/(1-tanθtanπ/4)=(tanθ+1)/(1-tanθ)=2
解得:tanθ=1/3
tan2θ=3/4
tan(2θ+π/4)=7
求证(1)1+tanθ/1-tanθ=tan(π/4+θ) (2)1-tanθ/1+tanθ=tan(π/4-θ)
若tan(α+β)=3,tan(β-π/4)=2,则tan(α+π/4)=?
已知tanα+tanβ=2,tan(α+β)=4 则tanα×tanβ=
已知tanα+tanβ=2,tan(α+β)=4,则tanαtanβ等于
已知tanθ=2,则tan(θ+π/4)= ,cos2θ=已知tanθ=2,则tan(θ+π/4)=cos2θ=
tan( x/2+π/4)+tan(x/2-π/4 )=2tanxtan(x/2+π/4)+tan(x/2-π/4)=[tan(x/2)+tan(π/4)]/[1-tan(x/2)tan(π/4)]+[tan(x/2)-tan(π/4)]/[1+tan(x/2)tan(π/4)]=[tan(x/2)+1]/[1-tan(x/2)]+[tan(x/2)-1]/[1+tan(x/2)]=[(tan(x/2)+1)^2-(tan(x/2)-1)^2]/[1-(tan(x
已知tan(θ+π/4)=1/2,则tanθ=
若tanα=1/2,则tan(α+π/4)=?
若tan(θ+π/4)=2,则tan(2θ+π/4)等于?求详细过程!
tan(20)+2*tan(40)+4*tan(10)-tan(70)
求证:(1)1+tanθ/1-tanθ=tan(π/4+θ)(2)1-tanθ/1+tanθ=tan(π/4-θ)
这道题为什么第二步的+到了第三步变成了-1.tan(x/2+π/4)+tan(x/2-π/4)=[tan(x/2)+tan(π/4)]/[1-tan(x/2)tan(π/4)]+[tan(x/2)-tan(π/4)]/[1+tan(x/2)tan(π/4)]=[tan(x/2)+1]/[1-tan(x/2)]+[tan(x/2)-1]/[1+tan(x/2)]=[(tan(x/2)+1)^2-(tan(x/2)-
已知(1-tanθ)/2+tanθ=1,求证tan2θ=-4tan(θ+π/4)
已知(1-tanθ)/(2+tanθ)=1,求证tan2θ=-4tan(θ+π/4)
已知α β 属于(0,π/2),满足tan(α+β)=4tanβ,则tanα的最大值
若tanα=1/3,tanβ=-1/4,则tan(2α-2β)=
已知tanα/2=2,求tanα与tan(α+π/4)
若tanα=3,tanβ=2/3,则tan(α+β) =