Question

me ajudem pfv☺️☺️☺️☺️​

Answer 1

Olá

Resposta:

1*

A10= 1 + (10-1)×2

A10 = 19

S10= (1+19)×10/2

S10= 100

2* a7=23

3* A a7=22

B= 16-11=5

4* A 3-3=0

B

S=-3+0+3+6+9+12

S=27

5*

3,7,11,15,19

6* n^2+1

2,5,10,17,26

7* A

8* A