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example Find 1+2+3+...+n via Pick's Theorem

1 Lượt xem24/11/2023

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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

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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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

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

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

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

2nd way: integral ∫ log √x(x^n) dx

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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

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

Pantun Melayu [Buah cempedak di luar pagar]

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integral ∫ x^(n-1) sin(x^n) dx
0:51

integral ∫ x^(n-1) sin(x^n) dx

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2 ways: Find logarithm of 5 to the base 5 √5.
3:17

2 ways: Find logarithm of 5 to the base 5 √5.

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1:00

Home grown organic vegetables

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0:51

Screen Recording 2024-02-22 at 12.00.24 AM

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Find the mean of the data given in the freq. distribution below ...
6:46

Find the mean of the data given in the freq. distribution below ...

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Given events J & K:
1:28

Given events J & K:

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sq root integral ∫1/√√x dx
1:02

sq root integral ∫1/√√x dx

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2 Lượt xem

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