设[tex=3.929x1.286]zKebtDs8Ul32VaeFspHY4SZimkvHXcwP07DoarkbdIc=[/tex]，证明当[tex=2.643x1.0]Fi2OiSq+zhaJTNdXB7v8ZiiLNxDfOHdeaRgfouwng8U=[/tex]时： [tex=10.286x1.5]iEeILnwz6RwbCWS0vG4bUk8xrbcsMg8AoUmxOoNx2wwvLq7rIa13n8+2JybVpA98FShMPfjL8YhqsikB95ZZehujZUxhme+yp4f/iX+uOqM=[/tex]。
举一反三
- 设 [tex=3.786x1.357]rqE9J7uSLhvz0PaH4DfF8/ubXeKYpquDvESglaMTrjE=[/tex], 证明: 当[tex=2.643x1.0]Fi2OiSq+zhaJTNdXB7v8ZiiLNxDfOHdeaRgfouwng8U=[/tex] 时，[tex=10.286x1.5]iEeILnwz6RwbCWS0vG4bUk8xrbcsMg8AoUmxOoNx2wwvLq7rIa13n8+2JybVpA98FShMPfjL8YhqsikB95ZZehujZUxhme+yp4f/iX+uOqM=[/tex]
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
- 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}
- set1 = {x for x in range(10) if x%2==0} print(set1) 以上代码的运行结果为？ A: {0, 2, 4, 6} B: {2, 4, 6, 8} C: {0, 2, 4, 6, 8} D: {4, 6, 8}
- 已知x(n)={1, 2, 3}，y(n)={1, 2, 1}，则x(n)*y(n)=________。（下划线表示n=0） A: {1, 4, 8, 8, 3} B: {1, 4, 8, 8, 3} C: {1, 4, 8, 8, 3} D: {1, 4, 8, 8, 3}