已知非零常数 a,b满足（acosπ/5-bsinπ/5）/（asinπ/5+bcosπ/5）=1/（tan8π/15）,求b/a.

已知非零常数 a,b满足（acosπ/5-bsinπ/5）/（asinπ/5+bcosπ/5）=1/（tan8π/15）,求b/a. 已知非零常数 a,b满足（acosπ/5-bsinπ/5）/（asinπ/5+bcosπ/5）=1/（tan8π/15）,求b/a. 详细过程 已知非零函数a.b满足：(asin(π/5)+bcos(π/5))/(acos(π/5)-bsin(π/5))=tan8π/5,求b/a的值 已知非零函数a.b满足：(asinπ/5+bcosπ/5)/(acosπ/5-bsinπ/5)=tan8π/5求b/a的值已知非零函数a.b满足：(asinπ/5+bcosπ/5)/(acosπ/5-bsinπ/5)=tan8π/5求b/a的值 已知非零实数a,b满足asinα+bcosα/acosα-bsinα=tan（α+π/6）,则b/a的值为 已知非零实数a,b满足(asin(∏/5)+bcos(∏/5))/(acos(∏/5)-bsin(∏/5))=tan(8∏/15),求b/a的值 已知非零实数a,b满足(asin(∏/5)+bcos(∏/5))/(acos(∏/5)-bsin(∏/5))=tan(8∏/15),求b/a的值 知非零常数a,b满足asinπ/5+bcosπ/5／acosπ/5-bsinπ/5=tanπ/15,求b/a. 已知函数f(x)=2acos(2x-π/3)+b的定义域为[0,π/2],值域为[-5,1],求常数a,b的值 已知三个非零的有理数a、b 、c,满足a+c 求微积分,这个是,A、正常数；B、负常数；C、零；D、非常数 已知常数a,b满足|a-1|+ 已知非零向量a,b满足丨a+b丨=丨a-b丨 求证a⊥b 已知非零向量a、b 向量计算已知非零向量a,b满足a＋b与a－b的夹角是π／2,那么有结论 已知非零实数a,b满足a²+a-1=0,b²+b-1=0 已知非零向量a,b满足A已知非零向量a，b满足a+b的绝对值=a-b的绝对值，求证a垂直b用分析法解答 已知非零向量a,b满足a.b=1/2||a||b|,|a|=2|b|已知非零向量已知非零向量a,b满足a●b=1/2|a||b|,|a|=2|b|,且c=b-a,则a,c夹角为 ●为点乘号,字母上面都有箭头的