Z 1 x dx p x3 1 2

[Pages:2]MIT Integration Bee Qualifying Exam Answers

1

log(2x) dx = log x + (log 2) log log x

x log x

2

1 dx = log 2

0 ex + 1

3

ee

log x

?

log (log x)

dx

=

1 (1

+

e2)

e

x

4

4

1

1+x

log

dx = log 4

0

1-x

5

1 dx = arctan (2x - 1)

x2 + (x - 1)2

6

x

xx

?

?

?

dx

=

x2/2

21 January 2020

7

sin4 x cos4 x(cos x + sin x)(cos x - sin x) dx = 1 sin5(x) cos5(x)

5

8 log(x2 + 1) dx = x log(x2 + 1) + 2 arctan(x) - 2x

9

2

cos2020(x) dx = 2-2019

2020

0

1010

10

2x + 1 dx = 1 ln (2x2 + 2x + 1)

2x2 + 2x + 1

2

11

1 arcsin(x)

1/ 2

x3

dx = 1/2

/2

12

sin(2x) cos(cos(x)) dx = 2(cos(1) + sin(1) - 1)

0

2

13

sin(sin(x) - x) dx = 0

0

14

1 +

x-1

2k0=108(k + 1)xk

2019 k=0

xk

dx

=

log(1

-

x2020)

15

2

1

dx = /4

0 tan 2020(x) + 1

16

x(1 - x)2020 dx = (1 - x)2022 - (1 - x)2021

2022

2021

17

sec4(x) tan(x)

1

dx = log

sec4(x) + 4

sec4(x) + 4

4

18 x2x(2 log(x) + 2) dx = x2x

1

19

1 - x2 dx = /4

0

20

x5e-x4

dx

=

/8

0

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