函数 f(x,y)=e2x(x+y2+2y)f(x,y)=e2x(x+y2+2y) 的极值为 A: 极小值 f(12,−1)=−e2f(12,−1)=−e2 B: 极大值 f(12,−1)=−e2f(12,−1)=−e2 C: 极小值 f(12,1)=7e2f(12,−1)=−e2 D: 极大值 f(12,1)=7e2f(12,−1)=−e2
函数 f(x,y)=e2x(x+y2+2y)f(x,y)=e2x(x+y2+2y) 的极值为 A: 极小值 f(12,−1)=−e2f(12,−1)=−e2 B: 极大值 f(12,−1)=−e2f(12,−1)=−e2 C: 极小值 f(12,1)=7e2f(12,−1)=−e2 D: 极大值 f(12,1)=7e2f(12,−1)=−e2
f(x)在[0,1]上有连续的二阶导数,f(0)=f(1)=0,任意x属于[0,...715af2ac3f81f8.png"]
f(x)在[0,1]上有连续的二阶导数,f(0)=f(1)=0,任意x属于[0,...715af2ac3f81f8.png"]
两个12µF(微法)电容器串联时,等效电容为多少() A: 6µF B: 12µF C: 24µF D: 36µF
两个12µF(微法)电容器串联时,等效电容为多少() A: 6µF B: 12µF C: 24µF D: 36µF
如果(F/P,12%,5)=1.7623,则下列等式正确的有( ) A: (P/F,12%,5)=0.5674 B: (F/A,12%,5)=6.5741 C: (P/A,12%,5)=3.6047 D: (A/P,12%,5)=0.2374 E: (A/F,12%,5)=0.1732
如果(F/P,12%,5)=1.7623,则下列等式正确的有( ) A: (P/F,12%,5)=0.5674 B: (F/A,12%,5)=6.5741 C: (P/A,12%,5)=3.6047 D: (A/P,12%,5)=0.2374 E: (A/F,12%,5)=0.1732
对于不平衡的运输问题,界面如下图,规划求解参数设置正确的是( )。[img=610x281]1803de0f90699ca.png[/img] A: $F$12:$F$14=$H$12:$H$14 B: $F$12:$F$14<=$H$12:$H$14 C: $C$15:$F$15>=$C$16:$F$16 D: $C$15:$F$15<=$C$16:$F$16
对于不平衡的运输问题,界面如下图,规划求解参数设置正确的是( )。[img=610x281]1803de0f90699ca.png[/img] A: $F$12:$F$14=$H$12:$H$14 B: $F$12:$F$14<=$H$12:$H$14 C: $C$15:$F$15>=$C$16:$F$16 D: $C$15:$F$15<=$C$16:$F$16
下图中,A和B两类一共有多少单位? [img=167x138]1802e4d4fa251d1.png[/img] A: 80 B: 50 C: 100 D: 70 E: 41 F: 39
下图中,A和B两类一共有多少单位? [img=167x138]1802e4d4fa251d1.png[/img] A: 80 B: 50 C: 100 D: 70 E: 41 F: 39
下列哪一个组合同f4/1/500的曝光量相同?() A: f/111/250 B: f/81/125 C: f/41/60 D: f/111/125
下列哪一个组合同f4/1/500的曝光量相同?() A: f/111/250 B: f/81/125 C: f/41/60 D: f/111/125
In fact, people will feel very comfortable if the temperature in winter is ______. A: 70°F B: 80°F C: 75°F D: 65°F
In fact, people will feel very comfortable if the temperature in winter is ______. A: 70°F B: 80°F C: 75°F D: 65°F
如果(F/P,12%,5)=1.762则下述系数中,正确的有()。 A: (P/F,12%,5)=0.5674 B: (F/A,12%,5)=6.3525 C: (P/A,12%,5)=3.6050 D: (A/P,12%,5)=0.2774
如果(F/P,12%,5)=1.762则下述系数中,正确的有()。 A: (P/F,12%,5)=0.5674 B: (F/A,12%,5)=6.3525 C: (P/A,12%,5)=3.6050 D: (A/P,12%,5)=0.2774
如果(F/P,12%,5)=1.7623,则下述系数正确的有() A: (P/F,12%,5)=0.5674 B: (F/A, 12%,5)=6.3525 C: (P/A, 12%,5)=3.6050 D: (A/P, 12%,5)=0
如果(F/P,12%,5)=1.7623,则下述系数正确的有() A: (P/F,12%,5)=0.5674 B: (F/A, 12%,5)=6.3525 C: (P/A, 12%,5)=3.6050 D: (A/P, 12%,5)=0