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关于.A30的百科

 在△ABC中,b=8,c=,S△ABC=,则∠A等于(    ).A.30º         B.60º  ...
Everydayatnoon,a30-minutelinewaitsoutsidethe900-square-...
  • Everydayatnoon,a30-minutelinewaitsoutsidethe900-square-...

  • 问题详情:Everydayatnoon,a30-minutelinewaitsoutsidethe900-square-feetstoreofXi’anFamousFoodsindowntownManhattan.Manyofthoseinlinemaybe1withXi’an,acityinwesternChina’ShaanxiProvinceandhometotheterracottawarriorsandhorses(兵马俑).2theyallknowthecity’...
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已知向量()A30°  B60°  C120°    D150°
已知等差数列,且=15,=25,则=()A30       B35       C40       D45
已知由正数组成的等比数列{an}中,公比q=2,a1·a2·a3·…·a30=245,则a1·a4·a7·…·...
△ABC中,已知tanA=,tanB=,则∠C等于()A30°B45°          C60°      ...
下列各点既位于东半球又位于北半球的是( )A30°N,10°W     B30°S,10°W       C4...