ĐẶT T LN X DT DX   X   3 3        . 2 T...

1. - TICH PHAN 141 BAI TAP TRAC NGHIEM NGUYEN HAM NANG CAO FILE WORD
TICH PHAN 141 BAI TAP TRAC NGHIEM NGUYEN HAM NANG CAO FILE WORD

1. Đặt

t

ln x

dt

dx

x

3

3

 

.

2

t

ln x

Suy ra

I

(t

1)dt

t

C

ln x

C

 