已知直角梯形中,//,,,是腰上的动点,则的最小值为___

已知直角梯形中,//,,,是腰上的动点,则的最小值为___

答案

________

相关题目

材料一:发端于美国的次贷危机已演变成全球金融危机,并
材料一:发端于美国的次贷危机已演变成全球金融危机,并对世界经济产生了巨大冲击。受国际金融危机快速蔓延和世界经济增长明显减速的影响,我
商鞅变法与王安石变法相同点是                   
商鞅变法与王安石变法相同点是                                                                             ( 
— Believe it or not, Tyler failed the final exams?     —        
— Believe it or not, Tyler failed the final exams?     —          ? What a pity!     A.Why not    B.What for       C.How come   D.So what   
(江西卷理17)在中,角所对应的边分别为,,,求及
(江西卷理17)在中,角所对应的边分别为,,,求及
观察图形,解答问题:   (1)按下表已填写的形式填写表
观察图形,解答问题:   (1)按下表已填写的形式填写表中的空格:图①图②图③ 三个角上三个数的积1×(-1)×2=-2(-3)×(-4)×(-5)=-60 三个角上
曲线y=2x-ln x在点(1,2)处的切线方程为( ) A.y=-x-1   
曲线y=2x-ln x在点(1,2)处的切线方程为( ) A.y=-x-1                            B.y=-x+3 C.y=x+1                      
在含有大量Ba2+和的溶液中,能大量共存的离子组是(    )
在含有大量Ba2+和的溶液中,能大量共存的离子组是(    ) A.H+  K+  ClO―  Cl―             B.H+  NH4+  Fe2+  Br― C.NH4+  K+  Cl―        
Stephen Hawking is the ___1__ physicist and mathematician of today. He is also _
Stephen Hawking is the ___1__ physicist and mathematician of today. He is also _2___ “Einstein of today” “The most talented ___3__ the wheelchair”. He is one __4___ of the many disabled people

最新题目