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Trig Integrals with Euler

X2 T05 02 trig by euler (2010)

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Page 1: X2 T05 02 trig by euler (2010)

Trig Integrals with Euler

Page 2: X2 T05 02 trig by euler (2010)

Trig Integrals with Euler

xdx3sin

Page 3: X2 T05 02 trig by euler (2010)

Trig Integrals with Euler

xdx3sin 3 31 3 38

ix ix ix ixe e e e dxi

Page 4: X2 T05 02 trig by euler (2010)

Trig Integrals with Euler

xdx3sin 3 31 3 38

ix ix ix ixe e e e dxi

3 31 1 38 3

ix ix ix ixe e e e ci i i

Page 5: X2 T05 02 trig by euler (2010)

Trig Integrals with Euler

xdx3sin 3 31 3 38

ix ix ix ixe e e e dxi

3 31 1 38 3

ix ix ix ixe e e e ci i i

1 3cos3 cos

12 4x x c

Page 6: X2 T05 02 trig by euler (2010)

Trig Integrals with Euler

xdx3sin 3 31 3 38

ix ix ix ixe e e e dxi

3 31 1 38 3

ix ix ix ixe e e e ci i i

1 3cos3 cos

12 4x x c

31 34cos 3cos cos12 4

x x x c

Page 7: X2 T05 02 trig by euler (2010)

Trig Integrals with Euler

xdx3sin 3 31 3 38

ix ix ix ixe e e e dxi

3 31 1 38 3

ix ix ix ixe e e e ci i i

1 3cos3 cos

12 4x x c

31 34cos 3cos cos12 4

x x x c

31 1 3cos cos cos3 4 4

x x x c

Page 8: X2 T05 02 trig by euler (2010)

Trig Integrals with Euler

xdx3sin 3 31 3 38

ix ix ix ixe e e e dxi

3 31 1 38 3

ix ix ix ixe e e e ci i i

1 3cos3 cos

12 4x x c

31 34cos 3cos cos12 4

x x x c

31 1 3cos cos cos3 4 4

x x x c

31 cos cos3

x x c

Page 9: X2 T05 02 trig by euler (2010)

xdx4sin

Page 10: X2 T05 02 trig by euler (2010)

xdx4sin 4 2 2 41 4 6 416

ix ix ix ixe e e e dx

Page 11: X2 T05 02 trig by euler (2010)

xdx4sin 4 2 2 41 4 6 416

ix ix ix ixe e e e dx

4 4 2 21 1 2 616 4

ix ix ix ixe e e e x ci i

Page 12: X2 T05 02 trig by euler (2010)

xdx4sin 4 2 2 41 4 6 416

ix ix ix ixe e e e dx

4 4 2 21 1 2 616 4

ix ix ix ixe e e e x ci i

1 1 3sin 4 sin 232 4 8

x x x c

Page 13: X2 T05 02 trig by euler (2010)

xdx4sin 4 2 2 41 4 6 416

ix ix ix ixe e e e dx

4 4 2 21 1 2 616 4

ix ix ix ixe e e e x ci i

1 1 3sin 4 sin 232 4 8

x x x c

xdx5sin

Page 14: X2 T05 02 trig by euler (2010)

xdx4sin 4 2 2 41 4 6 416

ix ix ix ixe e e e dx

4 4 2 21 1 2 616 4

ix ix ix ixe e e e x ci i

1 1 3sin 4 sin 232 4 8

x x x c

xdx5sin 5 3 3 51 5 10 10 532

ix ix ix ix ix ixe e e e e e dxi

Page 15: X2 T05 02 trig by euler (2010)

xdx4sin 4 2 2 41 4 6 416

ix ix ix ixe e e e dx

4 4 2 21 1 2 616 4

ix ix ix ixe e e e x ci i

1 1 3sin 4 sin 232 4 8

x x x c

xdx5sin 5 3 3 51 5 10 10 532

ix ix ix ix ix ixe e e e e e dxi

5 5 3 31 1 5 1032 5 3

ix ix ix ix ix ixe e e e e e ci i i i

Page 16: X2 T05 02 trig by euler (2010)

xdx4sin 4 2 2 41 4 6 416

ix ix ix ixe e e e dx

4 4 2 21 1 2 616 4

ix ix ix ixe e e e x ci i

1 1 3sin 4 sin 232 4 8

x x x c

xdx5sin 5 3 3 51 5 10 10 532

ix ix ix ix ix ixe e e e e e dxi

5 5 3 31 1 5 1032 5 3

ix ix ix ix ix ixe e e e e e ci i i i

1 5 5sin5 cos3 cos

80 48 8x x x c

Page 17: X2 T05 02 trig by euler (2010)

5 3cos sinx xdx

Page 18: X2 T05 02 trig by euler (2010)

5 3cos sinx xdx 5 31256

ix ix ix ixe e e e dxi

Page 19: X2 T05 02 trig by euler (2010)

5 3cos sinx xdx 5 31256

ix ix ix ixe e e e dxi

2 32 21

256ix ix ix ixe e e e dx

i

Page 20: X2 T05 02 trig by euler (2010)

5 3cos sinx xdx 5 31256

ix ix ix ixe e e e dxi

2 32 21

256ix ix ix ixe e e e dx

i

2 2 6 2 2 61 2 3 3256

ix ix ix ix ix ixe e e e e e dxi

Page 21: X2 T05 02 trig by euler (2010)

5 3cos sinx xdx 5 31256

ix ix ix ixe e e e dxi

2 32 21

256ix ix ix ixe e e e dx

i

2 2 6 2 2 61 2 3 3256

ix ix ix ix ix ixe e e e e e dxi

8 4 4 6 2 2 6

4 4 8

1 ( 3 3 2 6 6 2256

3 3 )

ix ix ix ix ix ix ix

ix ix ix

e e e e e e ei

e e e dx

Page 22: X2 T05 02 trig by euler (2010)

5 3cos sinx xdx 5 31256

ix ix ix ixe e e e dxi

2 32 21

256ix ix ix ixe e e e dx

i

2 2 6 2 2 61 2 3 3256

ix ix ix ix ix ixe e e e e e dxi

8 4 4 6 2 2 6

4 4 8

1 ( 3 3 2 6 6 2256

3 3 )

ix ix ix ix ix ix ix

ix ix ix

e e e e e e ei

e e e dx

8 8 6 6 4 4 2 21 1 1 1 3256 8 3 2

ix ix ix ix ix ix ix ixe e e e e e e ei i i i i

Page 23: X2 T05 02 trig by euler (2010)

5 3cos sinx xdx 5 31256

ix ix ix ixe e e e dxi

2 32 21

256ix ix ix ixe e e e dx

i

2 2 6 2 2 61 2 3 3256

ix ix ix ix ix ixe e e e e e dxi

8 4 4 6 2 2 6

4 4 8

1 ( 3 3 2 6 6 2256

3 3 )

ix ix ix ix ix ix ix

ix ix ix

e e e e e e ei

e e e dx

8 8 6 6 4 4 2 21 1 1 1 3256 8 3 2

ix ix ix ix ix ix ix ixe e e e e e e ei i i i i

1 1 1 3cos8 cos6 cos 4 cos 21024 384 256 128

x x x x c

Page 24: X2 T05 02 trig by euler (2010)

6 3sin cosx xdx

Page 25: X2 T05 02 trig by euler (2010)

6 3sin cosx xdx 3 61512

ix ix ix ixe e e e dx

Page 26: X2 T05 02 trig by euler (2010)

6 3sin cosx xdx 3 61512

ix ix ix ixe e e e dx

3 32 21512

ix ix ix ixe e e e dx

Page 27: X2 T05 02 trig by euler (2010)

6 3sin cosx xdx 3 61512

ix ix ix ixe e e e dx

3 32 21512

ix ix ix ixe e e e dx 3 3 6 2 2 61 3 3 3 3

512ix ix ix ix ix ix ix ixe e e e e e e e dx

Page 28: X2 T05 02 trig by euler (2010)

6 3sin cosx xdx 3 61512

ix ix ix ixe e e e dx

3 32 21512

ix ix ix ixe e e e dx 3 3 6 2 2 61 3 3 3 3

512ix ix ix ix ix ix ix ixe e e e e e e e dx

9 9 7 7 3 31 3 8 6512

ix ix ix ix ix ix ix ixe e e e e e e e dx

Page 29: X2 T05 02 trig by euler (2010)

6 3sin cosx xdx 3 61512

ix ix ix ixe e e e dx

3 32 21512

ix ix ix ixe e e e dx 3 3 6 2 2 61 3 3 3 3

512ix ix ix ix ix ix ix ixe e e e e e e e dx

9 9 7 7 3 31 3 8 6512

ix ix ix ix ix ix ix ixe e e e e e e e dx

9 9 7 7 3 31 1 3 8 6512 9 7 3

ix ix ix ix ix ix ix ixe e e e e e e e ci i i i

Page 30: X2 T05 02 trig by euler (2010)

6 3sin cosx xdx 3 61512

ix ix ix ixe e e e dx

3 32 21512

ix ix ix ixe e e e dx 3 3 6 2 2 61 3 3 3 3

512ix ix ix ix ix ix ix ixe e e e e e e e dx

9 9 7 7 3 31 3 8 6512

ix ix ix ix ix ix ix ixe e e e e e e e dx

9 9 7 7 3 31 1 3 8 6512 9 7 3

ix ix ix ix ix ix ix ixe e e e e e e e ci i i i

1 3 1 3sin 9 sin 7 sin 3 sin2304 1792 96 128

x x x x c

Page 31: X2 T05 02 trig by euler (2010)

2 2sin cosx xdx

Page 32: X2 T05 02 trig by euler (2010)

2 2sin cosx xdx 2 2116

ix ix ix ixe e e e dx

Page 33: X2 T05 02 trig by euler (2010)

2 2sin cosx xdx 2 2116

ix ix ix ixe e e e dx

22 2116

ix ixe e dx

Page 34: X2 T05 02 trig by euler (2010)

2 2sin cosx xdx 2 2116

ix ix ix ixe e e e dx

22 2116

ix ixe e dx

4 41 216

ix ixe e dx

Page 35: X2 T05 02 trig by euler (2010)

2 2sin cosx xdx 2 2116

ix ix ix ixe e e e dx

22 2116

ix ixe e dx

4 41 216

ix ixe e dx

4 41 1 216 4

ix ixe e x ci

Page 36: X2 T05 02 trig by euler (2010)

2 2sin cosx xdx 2 2116

ix ix ix ixe e e e dx

22 2116

ix ixe e dx

4 41 216

ix ixe e dx

4 41 1 216 4

ix ixe e x ci

1 1sin 432 8

x x c

Page 37: X2 T05 02 trig by euler (2010)

sintancos

xxx

Page 38: X2 T05 02 trig by euler (2010)

sintancos

xxx

ix ix

ix ix

e ei e e

Page 39: X2 T05 02 trig by euler (2010)

sintancos

xxx

ix ix

ix ix

e ei e e

xdx3tan

Page 40: X2 T05 02 trig by euler (2010)

sintancos

xxx

ix ix

ix ix

e ei e e

xdx3tan3

1 ix ix

ix ix

e e dxi e e

Page 41: X2 T05 02 trig by euler (2010)

sintancos

xxx

ix ix

ix ix

e ei e e

xdx3tan3

1 ix ix

ix ix

e e dxi e e

TOO MUCH WORK INVOLVED COMPARED TO PREVIOUS METHOD

Page 42: X2 T05 02 trig by euler (2010)

sintancos

xxx

ix ix

ix ix

e ei e e

xdx3tan3

1 ix ix

ix ix

e e dxi e e

TOO MUCH WORK INVOLVED COMPARED TO PREVIOUS METHOD

IF USING EULER’S, STICK WITH FUNCTIONS INVOLVING SINX OR COSX