/ 41X E X X DX(CĐ ĐN05) (CĐSP QN05)  64. 1  2 3 X X X00 (SIN...

63.

/ 4

1x e

x

xdx(CĐ ĐN05) (CĐSP QN05)

64.

1

2

3

x x x

0

0

(sin cos )cos

2

1

x xx

x

66. dx

5

e

2

dx