给出其对偶式:[tex=5.143x1.357]YvHLWKwU3rhs8buDEmzfaM56o7K7Egq01wRDPCYhi0g=[/tex]
举一反三
- 在3.6节消费者的选择模型中,验证(3), (5),(7)式给出的效用函数是否满足条件[tex=0.786x1.0]sHo1pKm+gjxjcUAJjHrarQ==[/tex]和[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex].
- 假设“☆”是一种新的运算,若3☆2=3×4,6☆3=6×7×8,x☆4=840(x>0),那么x等于: A: 2 B: 3 C: 4 D: 5 E: 6 F: 7 G: 8 H: 9
- 设X,Y为两个随机变量,且P{X ³0,Y ³ 0} = 3/7 , P{X ³ 0} = P{ Y ³ 0} = 4/7 ,则P{max(X, Y) ³ 0} = ( ). A: 1/7 B: 3/7 C: 4/7 D: 5/7
- 序列x(n)=R5(n),其8点DFT记为X(k),k=0,1,…,7,则X(0)为( )
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}