Question

ОЧЕНЬ СРОЧНО!!!!! ПОЖАЙЛУСТА!!!! ПОМОГИТЕ!!!!!

Answer 1

Ответ:

1. а2 = 10

а3 = 16

а4 = 22

2. n = 20

an = 340

S = ((17 + 340) / 2) × 20 = (357/2) × 20 = 3570

3. q = 12 ÷ (-6)

q = -2

n = 8

b1 = 3

b8 = 3 × -2^(8 - 1) = 3 × -2^7 = 3 × -128 = -384