A.等于的知识精选

等于(     )A.6     B、-6     C、-9     D、9
问题详情:等于(     )A.6     B、-6     C、-9     D、9【回答】C知识点:有理数的乘方题型:选择题...
设a,b∈R,*{1,a+b,a}=,则b-a等于(  )A.1                      ...
问题详情:设a,b∈R,*{1,a+b,a}=,则b-a等于()A.1                                                             B.-1C.2                    ...
等于(  ) A.0                            B.               ...
问题详情:等于() A.0                            B.                      C.1                        D.-【回答】B知识点:三角函数题型:选择...
.等于(   )A.                B.                C.         ...
问题详情:.等于(   )A.                B.                C.                D.【回答】A【解析】【分析】根据排列数的定义求解.【详解】,故选A.【点睛】本题考查...
若,则等于                                       (  )A.     ...
问题详情:若,则等于                                       (  )A.          B.           C.          D.【回答】B知识点:二次根式的乘除...
等于(  )A.       B.            C.               D.
问题详情:等于(  )A.       B.            C.               D.【回答】B知识点:三角函数题型:选择题...
等于(  )A.﹣  B.   C.﹣      D. 
问题详情:等于()A.﹣  B.   C.﹣      D.【回答】B【考点】运用诱导公式化简求值;根式与分数指数幂的互化及其化简运算.【专题】计算题;转化思想;三角函数的求值.【分析】由sin120°>0,去掉根号,利用诱导公式即可化简求值.【解...
 等于(  )A.    B.     C.     D.
问题详情: 等于()A.    B.     C.     D.【回答】A知识点:三角函数题型:选择题...
等于                      A.-            B.-             ...
问题详情:等于                      A.-          B.-                 C.             D.【回答】C知识点:三角函数题型:选择题...
已知*等于                             A.                  ...
问题详情:已知*等于                             A.                                 B.C.                            ...
等于(  )A.     B.   C.  D.
问题详情:等于()A.     B.   C.  D.【回答】C知识点:导数及其应用题型:选择题...
cos(-)等于(  )A.             B.             C.-          ...
问题详情:cos(-)等于()A.             B.             C.-          D.-【回答】C知识点:三角函数题型:选择题...
已知*等于                 (   )      A.                   ...
问题详情:已知*等于                 (   )      A.                                       B.      C.                   ...
若,则等于A.                           B.                   ...
问题详情:若,则等于A.                           B.                           C.                   D.【回答】B知识点:三角恒等变换题型:选...
等于 A.2                                           B.-2  ...
问题详情:等于 A.2                                           B.-2                            C.±2                  ...
若,则等于     (           )      A.         B.             ...
问题详情:若,则等于     (           )      A.         B.               C.            D.【回答】C知识点:三角恒等变换题型:选择题...
等于( )A.   B.    C.    D.
问题详情:等于( )A.   B.    C.    D.【回答】D 解:. 知识点:导数及其应用题型:选择题...
在中,,,,则等于              (   )                    A.     ...
问题详情:在中,,,,则等于              (   )                    A.         B.         C.或     D.以上*都不对【回答】A知识点:解三角形题型:选择题...
 的值等于                                 (    )A.         ...
问题详情: 的值等于                                 (    )A.          B.        C.        D.【回答】A知识点:三角函数题型:选择题...
等于                                     A.              ...
问题详情:等于                                     A.                    B.                        C.           ...
等于(  )A.-       B.         C.    D.-
问题详情:等于()A.-       B.         C.   D.-【回答】 C知识点:三角函数题型:选择题...
设*,*,则等于A.                            B.C.           ...
问题详情:设*,*,则等于A.                            B.C.                                 D.【回答】B【解析】因为*,,所以.故选B.【名师点睛】本题主要考查...
等于(   )A.  B.  C.  D.
问题详情:等于(   )A.  B.  C.  D.【回答】B 知识点:三角函数题型:选择题...
已知等于                                  A.               ...
问题详情:已知等于                                  A.                        B.                   C.             ...
+等于                                               (  )A...
问题详情:+等于                                               ()A.lg3                    B.-lg3C.                     ...
热门标签