2. Find the maximum and minimum values of f(x,y)=2x2+y2-4x-2y+5 on the closed set S=\{(x,y)| x^2+y^2 \leq 1\}$.
二、計算題 1. Find the interval of convergence of the series
10. $\int{0}^{1} \int{\frac{x}{2}}^{x} e^{y^2} dy dx$ =________.
98.在滑塊驅動機構上使用齒條與小齒輪機構者稱為何種衝床?(A)摩擦衝床(B)齒條衝床(C)油壓衝床(D)連桿衝床
97.在滑塊驅動機構上使用螺旋機構者稱為何種衝床?(A)摩擦衝床(B)機械衝床(C)油壓衝床(D)連桿衝床
96.機械衝床與液壓衝床的差異,何者正確?(A)機械衝床比液壓衝床的行程長度長(B)機械衝床比液壓衝床在生產性上佔對優勢(C)機械衝床比液壓衝床不容易產生過負載(D)機械衝床比液壓衝床不容易保養
This is a large modal.