在△ABC中,a、b、c是∠A、∠B、∠C的对边,已知∠B=45°,∠C=60°,
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,求△ABC的面积S
△ABC.
考点分析:
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已知AC,BD为圆O:x
2+y
2=4的两条相互垂直的弦,垂足为M(1,
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),则四边形ABCD的面积的最大值为( )
A.4
B.4
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C.5
D.5
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A.
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D.
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下列函数中,与函数
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=( )
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B.1-2i
C.2+i
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