T∂∂X∂ + XE-T UT=0 = COSX ∂ = A2 22UU

2. - BAI TAP CHO 16 UNIT 12 CO DAP AN
BAI TAP CHO 16 UNIT 12 CO DAP AN
2. t∂x∂ + xe

-t

u

t=0

= cosx ∂ = a

2

2

2

u