Question

AJUDA please me ajudemm

Answer 1

Resposta:

3. (12,15,18,21,24,27,30,33,36,39,...)

4. (12, 7,2, -3,-8,-13,-18,-23,-28, -33,...)

5. Fórmula geral: an = a1 + (n – 1)r

a35= 4 +(35-1).5

a35= 4+ 34.5= 174

6. a101= 15 + (101-1).3

a101= 15 +100.3= 315

7. an = a1 + (n – 1)r

163= 3 +(n-1). 4

163= 3 + 4n -4

163+1= 4n

n= 164/4

n= 41 termos

8. 410= 110 +(n-1)15

410= 110 + 15n -15

410 -95 = 15n

n= 315/15

n= 21 termos