Question

calcule o 100° termo da PAs (15,20,25,..)​

Answer 1

✔OLÁ!!!

A1 = 15

R = 20 - 15 = 5

A100?

$an = a1 + (n - 1)r \\ a100 = 15 + (100 - 1) \times 5 \\ a100 = 15 + 99 \times 5 \\ a100 = 15 + 495 \\ a100 = 510$