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Show that the function u(x,y)=e^x cos(y) is harmonic in the x-y plane

0 Lượt xem09/04/2024

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Nhận Thua
3:36

Nhận Thua

bili_1990039280bili_1990039280

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Dung Pham_8441Dung Pham_8441

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Đức Anh Đặng_1771Đức Anh Đặng_1771

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Let f(x) be a polynomial of degree 1. If f(10)-f(5)=15, then f(20)-f(5)=?
1:11

Let f(x) be a polynomial of degree 1. If f(10)-f(5)=15, then f(20)-f(5)=?

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5 Lượt xem

A box contains 8 blue & 6 red socks. What is the number of ways that 2 socks can be drawn ...
1:23

A box contains 8 blue & 6 red socks. What is the number of ways that 2 socks can be drawn ...

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11 Lượt xem

Pantun Melayu [Buah cempedak di luar pagar]
0:28

Pantun Melayu [Buah cempedak di luar pagar]

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19 Lượt xem

prpob stat A bag contains 5 black balls 6 red balls. Determine the number of ways in which ...
1:06

prpob stat A bag contains 5 black balls 6 red balls. Determine the number of ways in which ...

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1 Lượt xem

AI 2008 Hindustan: Evaluate integral ∫ 2/3 cos(x)/sin^2(x) dx
0:56

AI 2008 Hindustan: Evaluate integral ∫ 2/3 cos(x)/sin^2(x) dx

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23 Lượt xem

MP 8,93,96,97,99 Hindustan: Evaluate ∫ sec(x)/(sec(x)-tan(x)) dx
1:23

MP 8,93,96,97,99 Hindustan: Evaluate ∫ sec(x)/(sec(x)-tan(x)) dx

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17 Lượt xem

2nd way: integral ∫ log √x(x^n) dx
1:00

2nd way: integral ∫ log √x(x^n) dx

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65 Lượt xem

U North Texas Integration Bee 2nd way: x^2/√(x-1) dx
2:02

U North Texas Integration Bee 2nd way: x^2/√(x-1) dx

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1 Lượt xem

AI 2008 Hindustan 2nd/2 ways: Evaluate trig integral ∫2cos(x)/(3 sin^3(x)) dx
0:45

AI 2008 Hindustan 2nd/2 ways: Evaluate trig integral ∫2cos(x)/(3 sin^3(x)) dx

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9 Lượt xem

alternate way: count sum 1 + 2 + 3+... + n via "polynomial"
8:49

alternate way: count sum 1 + 2 + 3+... + n via "polynomial"

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4 Lượt xem

Alternate way: Find 1+2+3+... +(n-1)+n via "polynomial degree 2"
5:18

Alternate way: Find 1+2+3+... +(n-1)+n via "polynomial degree 2"

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23 Lượt xem

1st way: exp ∫(e^x)/x (1+x log(x)) dx
1:49

1st way: exp ∫(e^x)/x (1+x log(x)) dx

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22 Lượt xem

Alternate way: integral ∫ax+b dx
3:18

Alternate way: integral ∫ax+b dx

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1 Lượt xem

Derivative d/dx(x^x) NOT equal ...
1:09

Derivative d/dx(x^x) NOT equal ...

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0 Lượt xem

2nd way: integral ∫1/(a + √√b (x^2)) dx
2:15

2nd way: integral ∫1/(a + √√b (x^2)) dx

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3 Lượt xem

Alternate way: trig integral ∫sin(x) dx
1:44

Alternate way: trig integral ∫sin(x) dx

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4 Lượt xem

2nd Alternate trig ∫integral sin(x) dx
1:28

2nd Alternate trig ∫integral sin(x) dx

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2 Lượt xem

Trang chủ>Show that the function u(x,y)=e^x cos(y) is harmonic in the x-y plane>