EX XDX.COSX X DXLN 58.(CĐ VL 05) (CĐCN 05)012 DX4932XX 60. 1 XX...

57.

e

x xdx.cosx x dxln 58.(CĐ VL 05) (CĐCN 05)

0

1

2 dx49

3

2

xx 60.

1

xdx