2)(COS(X 2 T CMCOS(10 2DA X2COS(10T)(CM) B X2COS(10T )(CM)...

2 ) - KIEM TRA 1 TIET CO DAP AN VAT LY 12 HKI LAN 20910
KIEM TRA 1 TIET CO DAP AN VAT LY 12 HKI LAN 20910
2)(cos(x 2 t cm10 2

D

A

x2cos(10t)(cm)

B

x2cos(10t )(cm)

C

)( )