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(1999•内江)当∠A为锐角,且cosA的值大于时,则∠A( ) A.大于30...
(1999•内江)当∠A为锐角,且cosA的值大于
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时,则∠A( )
A.大于30°
B.小于30°
C.大于60°
D.小于60°
考点分析:
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