Calculate the general solution y of the 3rd order linear homogeneous differential equationym-2"+y-2y=0.

  • 2022-01-03 12:41
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To calculate limn(n+i)(n2+2)

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Let the function z=x(x,y)determined by the equation F(,)=0,Where Fisazazdifferentiable and F≠O,to calculate x+a

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The curve y=x2 is tangent to the curve y=alnx(a≠O).Calculate a.

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A quadratic form f(x1,x2,x3)=ax+ax2+(a-1)x3+2x1x3-2x2x3(i)Find all eigenvalues of the matrix of quadratic type f;(i)Find... 查看全部

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Let1-1-1A=-1110-4-2(①)Find all the vectors that satisfy A52=专1,A253=51(i)For any vector 52 and 53 in (i),it is proved to... 查看全部

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(①)Prove Lagrange theorem:if the function f (x)in continuous on la,b],can guide inthe (a,b),there are some fE(a,b),makes... 查看全部

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Compute a double integral(x-y)dxdy,where D={(x,y)(x-1)2+(y-1)2≤2,y≥xD

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Let the nonnegative function y=y(x)(&O)satisfy the differential equation xy"-y'+2=O.When the curve y=y(x)passes thro... 查看全部

  • 2022-01-03 12:38
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Let z=f(x +y,x -y,xy):,Where f has second continuous partial derivatives,tocalculate dz anddxdy

  • 2022-01-03 12:37
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