(cot(a+4派)cos(a+派)sin^2(a+3派))/(tan+(派+a)cos^3(-派-a))
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![(cot(a+4派)cos(a+派)sin^2(a+3派))/(tan+(派+a)cos^3(-派-a))](/uploads/image/z/8568778-58-8.jpg?t=%28cot%28a%2B4%E6%B4%BE%29cos%28a%2B%E6%B4%BE%29sin%5E2%28a%2B3%E6%B4%BE%29%29%2F%28tan%2B%28%E6%B4%BE%2Ba%29cos%5E3%28-%E6%B4%BE-a%29%29)
(cot(a+4派)cos(a+派)sin^2(a+3派))/(tan+(派+a)cos^3(-派-a))
(cot(a+4派)cos(a+派)sin^2(a+3派))/(tan+(派+a)cos^3(-派-a))
(cot(a+4派)cos(a+派)sin^2(a+3派))/(tan+(派+a)cos^3(-派-a))
(cot(a+4派)cos(a+派)sin^2(a+3派))/(tan+(派+a)cos^3(-派-a))
[sin(A-派)cot(A-2派)]/[cos(A-派)tan(A-2派)]
已知sin(派 a)=2/3,求sin(派-a)-cot(a-派).cos(3派 a)的值
{sin(派+a)cos(1.5派-a)cot(-a)}/{tan(a—派)cos(a-2派)sin(派/2+a)}
证明:Tan(3派-a)分之Sin(a-5派)乘以tan(a-二分之三派)分之Cot(二分之派-a)Sin(-a-4派)分之Cos(8派-a) 等于Sina
三角函数化简题:1+sin(a-2派)* sin(派+a)—tan(派—a)* cot(a—派)—2cos^2(-a)=
cos(派-a)=?
sin(a-派/4) +cos(派/4+a) 化简
化简cos(派/4+a)+sin(派/4+a)
COS(A+派/4)=3/5,派/2
已知COSA=1/3且-1/2派<A<0,求[COT(-A-派)乘以SIN(2派+A)]/COS(-A)TAN(A)
[cos(a-派)/sin(派-a)]乘sin(2派-a)乘cos(2派-a)
cos派/6+Tan派/4-sin派/3= cos(3派+a)=
已知sina=1/5 a属于(派/4,派)则cos(a-派/3)=
化简tan(3派-a),sin(a-5派),tan(a-3派/2),cos(8派-a),sin(-a-4派)
设a=sin派/6,b=cos派/4,c=派/3,d=tan派/4
化简cos^2(派-A)
cos(-派-a)求化简过程