Question

Hepl me!Giúp mk ,mk tick cho 3 lần nha

3+6+12+24+.....+768+1536

Answer 1

A = 3 + 6 + 12 +24 + ... + 768 + 1536

A x 2 = 6 + 12 + 24 + 48 + ... + 1536 + 3072

A = 3 + 3072 = 3075

Answer 2

chịu nha bạn

Answer 3

A = 3 + 6 + 12 + 24 + ... + 768 + 1536

A x 2 = 6 + 12 + 24 + 48 + ... + 1536 + 3072

A = 3072 - 3  = 3069

Answer 4

= 3 + 3.2 + 3.4 + 3.8 + 3.16 + 3.32 + 3.64 + 3.128 + 3.256 + 3.512

= 3. ( 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 +512 )

= 3 . 1023

= 3069