急問....
1.use the double integral to find the volume of tetrahedron bounded by the
planes x+y+z=1 x=0 y=0 z=0
2.let F(x.y)=ln(y/x) find themaximum value of directional derivative of f
at the point (4.2)
3.find the limit lim(1/n+1 + 1/n+2 +...........+ 1/n+n)
n->00
4.the tangent line of F(x.y)=x^3-2x^2+x+1 is parallel to y=5x+3
at x=?
5.a linear approximation of f(x)=(x+3)^1/2 at a=1 is??????
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07/16 17:53, , 1F
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07/17 12:03, 3F
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