摘要:在圆内.过点有n条弦的长度成等差数列.最短弦长为数列的首项.最长弦长为.若公差.则n的取值集合为 A.{4,5,6} B.{6,7,8,9} C.{3,4,5} D.{3,4,5,6}
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在圆内,过点有n条弦的长度成等差数列,最小弦长为数列的首项,最大弦长为 ,若公差,那么n的取值集合为 ( )
A.{4,5,6,7} B.{4,5,6} C.{3,4,5,6} D. {3,4,5}
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内,过点有n条弦的长度成等差数列,最短弦长为数列的首项,最长的弦长为,若公差,那么n的取值集合为[
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A .{4,5,6} |
B .{6,7,8,9} |
C .{3,4,5} |
D .{3,4,5,6} |