cosπ|3-tanπ|4+3|4tan²π|6+cos²π|6-sinπ|4

Sinπ/3Tanπ/3+tanπ/6COSπ/6－Tanπ/4COSπ/2 已知(1+tanα)(1+tanβ)=4cos（π/3）0 sin29π/6+cos(-29π/3)+tan(-25/4) cosπ|3-tanπ|4+3|4tan²π|6+cos²π|6-sinπ|4 cosπ/3+tanπ/4+3tan²π/6+sinπ/2+cosπ+sin3π/2等于?. 化简:(sin(α-3π)*cos(-α))/(tan(α-5π)*cos^2(α-5π)*tan(4π-α)) 已知tan(π+α)=-1/3 tan(α+β)=[sin(π-2α)+4(cosα)^2]/[10(cosα)^2-sin2α]求……已知tan(π+α)=-1/3tan(α+β)=[sin(π-2α)+4(cosα)^2]/[10(cosα)^2-sin2α]求：1、tan(α+β)2、tanβ 化简sin(9π+α）tan（3/2π+α）/cos(-4π-α）tan（15π+α）tan(7/2π-α） 化简[sin(π-α)cos(3π-α)tan(-α-π)]/[tan(4π-α)sin(5π+α)] 求值:2cosπ/2-tanπ/4+3/4tan²π/6-sinπ/6+cos²π/6+sin3π/2 -1/4cosπ tan(4/π+α)=3 求tanα? cosπ/3－tanπ/4+cosπ－sin3π/2 化简计算 tan(45度-a)tan(45度+a)+tan(2π-a)*tan(3/4π+a) 求值 计算（1）cosπ/3-tanπ/4+3/4tan²π/6-sinπ/6+cos²π/6cosπ/3-tanπ/4+3/4tan²π/6-sinπ/6+cos²π/6[tan(-150°)cos（-210°）cos420°]/cot(-600°)sin（-1050°）cos25/6π+cos25/3π+tan(-25/4π)5sinπ/2+2cos0-3sin3/2π+10cosπt 计算cosπ/3-tanπ/4+3/4tan²π/6-sinπ/6+cos²π/6cosπ/3-tanπ/4+3/4tan²π/6-sinπ/6+cos²π/6[tan(-150°)cos（-210°）cos420°]/cot(-600°)sin（-1050°）cos25/6π+cos25/3π+tan(-25/4π)5sinπ/2+2cos0-3sin3/2π+10cosπtan10°t 计算2cosπ/2-tanπ/4+3/4tan²π/6-sinπ/6+cos²π/6+sin3π/2同上 写出过程 2cosπ/2—tanπ/4+3/4tan平方π/6+cos平方π/6+sin3π/2 tan(a-4π)cos(π+a)sin^2(a+3π)/tan(3π+a)cos^2(2/5π+2)=0.5,求tana