2  2 X X CA .3COSX 2 TANX C B . 32COS 3TAN   2 X X C2 X...

câu 20: - TICH PHAN TRAC NGHIEM 12
TICH PHAN TRAC NGHIEM 12

Câu 20:

2

2

x

x

C

A .

3cos

x

2 tan

x C

B .

3

2cos

3tan

2

x

x

C

D .

3

2cos

3tan

C .

3

2cos

3tan

x

e dx

bằng

e