BÀI 3. 2 3 2(COS 1) COS .I X X DX= Ị -0P PP PCOS . 1 (1 COS 2 ).• A =...

14.

π

+

3

x x1 sinc x dx

2

os(B_11) ;I = 3+23π +ln 2

(

3

)

0