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關於.A30的百科

 在△ABC中,b=8,c=,S△ABC=,則∠A等於(    ).A.30º         B.60º  ...
已知向量()A30°  B60°  C120°    D150°
△ABC中,已知tanA=,tanB=,則∠C等於()A30°B45°          C60°      ...
Everydayatnoon,a30-minutelinewaitsoutsidethe900-square-...
  • Everydayatnoon,a30-minutelinewaitsoutsidethe900-square-...

  • 問題詳情:Everydayatnoon,a30-minutelinewaitsoutsidethe900-square-feetstoreofXi’anFamousFoodsindowntownManhattan.Manyofthoseinlinemaybe1withXi’an,acityinwesternChina’ShaanxiProvinceandhometotheterracottawarriorsandhorses(兵馬俑).2theyallknowthecity’...
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下列各點既位於東半球又位於北半球的是( )A30°N,10°W     B30°S,10°W       C4...
已知等差數列,且=15,=25,則=()A30       B35       C40       D45
已知由正陣列成的等比數列{an}中,公比q=2,a1·a2·a3·…·a30=245,則a1·a4·a7·…·...