Wanda Littlemore's utility function is U (x, y) = x + 63y2.Her income is 184. If the price of x is 1 and the price of y is 33, how many units of good x will Wanda demand?
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1.Wanda Littlemore's utility function is U (x, y) = x + 63y2.Her income is 184.
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2.下列哪一项等同于x!=y?: ! (x == y)|x > y && x < y|x > y || x < y|x >= y || x <= y
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3.设 z = f(u, v),u = φ(x, y),v = ψ(x, y),则∂z/∂x = ( )
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4.\(设f(x),g(x)是可微函数,且满足u(x,y)=f(2x+5y)+g(2x-5y),\\u(x,0)=\sin {2x},u'_y(x,0)=0,则u(x,y)=(\,)\)
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5.[单选] 若yA . y=y(x) B . y=y(x) cC . y=y(x) cD . y=y(x) c
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6.x=3,y=4,z=5,执行以下语句if(x>z)[x=y;y=z;z=x;] else [x=z;z=y;y=x;] x=__y= __z= __。
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7.(1)y=√x 1
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8.[单选题]复合函数y=sin(ln√x)可以分解为() A y=sinu,u=lnvυ,υ=√x B y=sinu,u=√υ,υ=lnx C y=lnu,u=√x D y=sinu,u=lnx
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9.与公式("x)(P(x)∧Q(x, y))Þ($x)R(x, y)等值的是( )。
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10.(x<=y<=z)D (x<=y)&(y