sinx=根号3/2 90〈X〈180度 求 cos x ,tan x ,cot x,sec x,csc x 等于多少

sinx=根号3/2 90〈X〈180度 求 cos x ,tan x ,cot x,sec x,csc x 等于多少 f(x)=|sin x+cos x+tan x+cot x+sec x+csc x|最小值 cot x=1/2 0〈X〈90度 求 sin x ,cosx ,tanx,sec x,csc x 等于多少 sin(x) cos(x) tan(x) cot(x) sec(x) csc(x) arcsin(x) arccos(x 证明(tan^2x-cot^2x)/(sin^2x-cos^2x)=sec^2x+csc^2x 证明(tan^2x-cot^2x)/(sin^2x+cos^2x)=sec^2x+csc^2x 求sin^2(x)+tan^2(x)+csc^2(x)+sec^2(x)+cos^2(x)+cot^2(x)=31里,x f(x)=|sin x+cos x+tan x+cot x+sec x+csc x|最小值答对马上采纳, tan x /(1-cot x) + cot x /(1-tanx) = 1+ sec x csc x 谁能帮我解一下“tan x + cot x = sec x csc x” 已知函数f(x)=sin^2x+csc^2x+cos^2x+sec^2x+tan^2x+7cot^2x,x∈(0,π/4 简化三角函数:csc(x)/sin(x)-(cot(x)csc(x))/sec(x)