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函数z=,则函数的全微分为() A: dz=()dx B: dz=()dy C: dz= ()dx+()dy D: dz=0
函数z=,则函数的全微分为() A: dz=()dx B: dz=()dy C: dz= ()dx+()dy D: dz=0
南方高尔夫球场果岭可以选用改良狗牙根，如天堂419
南方高尔夫球场果岭可以选用改良狗牙根，如天堂419
设,则dz=(
设,则dz=(
若f(z),g(z)在单连域G内解析且g(z)≠0，C为G内任意一条闭曲线，则∮_C▒[f(z)/g(z)]dz= A: 0 B: 2πif(0)/g(0) C: 2πi D: 2π
若f(z),g(z)在单连域G内解析且g(z)≠0，C为G内任意一条闭曲线，则∮_C▒[f(z)/g(z)]dz= A: 0 B: 2πif(0)/g(0) C: 2πi D: 2π
z=cos(xy+y^2)()的全微分为()(2.0分)A.()dz=-sin(xy+y^2)(dx+dy)()B.()dz=-sin(xy+y^2)[ydx+(x+2y)dy]()C.()dz=-sin(xy+y^2)(y^2dx+xdy)()D.()dz=-sin(xy+y^2)[xydx+(x+y^2)dy]
z=cos(xy+y^2)()的全微分为()(2.0分)A.()dz=-sin(xy+y^2)(dx+dy)()B.()dz=-sin(xy+y^2)[ydx+(x+2y)dy]()C.()dz=-sin(xy+y^2)(y^2dx+xdy)()D.()dz=-sin(xy+y^2)[xydx+(x+y^2)dy]
设,则dz=44e8a0e85efd3f52fd3461cd58ac1bcb.png
设,则dz=44e8a0e85efd3f52fd3461cd58ac1bcb.png
拟塑性流体τ的增长率随du/dz增大而 ，涨塑性流体τ的增长率随du/dz增大而 。宾汉塑性流体τ与du/dz成 关系
拟塑性流体τ的增长率随du/dz增大而 ，涨塑性流体τ的增长率随du/dz增大而 。宾汉塑性流体τ与du/dz成 关系