Question

If $z=f(x,y$) where $x=e^u \cos(v)$ and $y=e^u \sin(v)$ then the value of $y\frac{∂z}{∂u}+x\frac{∂z}{∂v}$?

score 19.4k · Answer 1 · 2018-02-20 15:09:38

19.4k

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If $z=f(x,y$) where $x=e^u \cos(v)$ and $y=e^u \sin(v)$ then the value of $y\frac{∂z}{∂u}+x\frac{∂z}{∂v}$?

Published on 20 Feb 2018 - 15:09

score 348 · Answer 2 · 2026-04-05 13:51:34

348

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Second derivative in coordinate invariant form

Published on 05 Apr 2026 - 13:51

score 34 · Answer 3 · 2018-02-20 15:32:47

34

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Compute the volume of the bowl.

Published on 20 Feb 2018 - 15:32

score 19 · Answer 4 · 2018-02-20 16:13:15

19

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For $V=V(r)$, where $r^2=x^2_1+x^2_2+...+x^2_n$, $\sum_1^n\frac{∂^2V}{∂x_i^2}=\frac{∂^2V}{∂r^2}+αV_r$, then what is the value of α?

Published on 20 Feb 2018 - 16:13

score 161 · Answer 5 · 2026-04-11 08:18:54

161

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What is the value of $\alpha +\beta$?

Published on 11 Apr 2026 - 8:18

score 734 · Answer 6 · 2026-03-24 22:13:58

734

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Help with Multivariable Delta-Epsilon Proof for $\lim_{(x,y)\to (1,2)}{ \left(2x^2 + y^2\right)} = 6$

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score 107 · Answer 7 · 2018-02-20 21:01:27

107

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For what $\alpha$ does $\iint_D\frac{1}{(x+y)^{\alpha}}\ dxdy$ converge?

Published on 20 Feb 2018 - 21:01

score 20 · Answer 8 · 2026-04-11 10:16:44

20

Views

Gradient Quesiton

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score 3.3k · Answer 9 · 2018-02-21 08:25:40

3.3k

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Published on 21 Feb 2018 - 8:25

score 144 · Answer 10 · 2026-04-12 07:00:51

144

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Find the maximum value of given expression

Published on 12 Apr 2026 - 7:00

score 190 · Answer 11 · 2018-02-21 14:27:51

190

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Solving a differential equation with 2 dependent variables using SciLab

Published on 21 Feb 2018 - 14:27

score 85 · Answer 12 · 2026-04-09 00:31:26

85

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Let $\omega$ be an (n-1)-form on $\mathbb{R}^n-{0}$, calculate $d\omega$

Published on 09 Apr 2026 - 0:31

score 28 · Answer 13 · 2026-04-12 03:21:43

28

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Question on simple differential problem/understanding differential as upper bound

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score 2.5k · Answer 14 · 2018-02-21 21:59:43

2.5k

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If functions agree at all but finitely many points then the integrals are the same

Published on 21 Feb 2018 - 21:59

score 138 · Answer 15 · 2018-02-21 22:33:58

138

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Spivak Chapter 3 Lemma 3-7

Published on 21 Feb 2018 - 22:33

List Question

If $z=f(x,y$) where $x=e^u \cos(v)$ and $y=e^u \sin(v)$ then the value of $y\frac{∂z}{∂u}+x\frac{∂z}{∂v}$?

Second derivative in coordinate invariant form

Compute the volume of the bowl.

For $V=V(r)$, where $r^2=x^2_1+x^2_2+...+x^2_n$, $\sum_1^n\frac{∂^2V}{∂x_i^2}=\frac{∂^2V}{∂r^2}+αV_r$, then what is the value of α?

What is the value of $\alpha +\beta$?

Help with Multivariable Delta-Epsilon Proof for $\lim_{(x,y)\to (1,2)}{ \left(2x^2 + y^2\right)} = 6$

For what $\alpha$ does $\iint_D\frac{1}{(x+y)^{\alpha}}\ dxdy$ converge?

Gradient Quesiton

How to prove that a function $f(x,y)$ has a maximum or minimum value?

Find the maximum value of given expression

Solving a differential equation with 2 dependent variables using SciLab

Let $\omega$ be an (n-1)-form on $\mathbb{R}^n-{0}$, calculate $d\omega$

Question on simple differential problem/understanding differential as upper bound

If functions agree at all but finitely many points then the integrals are the same

Spivak Chapter 3 Lemma 3-7

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