Ответ:

3.

i y

0 1

2 4

5 10

11 22

1 + 1 = 2

2 * 2 = 4

1 + 4 = 5

5 * 2 = 10

1 + 10 = 11

11 * 2 = 22

3.

current number + = 1

if current number %2 == 0: continue

4.

import math

a=float(input())

b=float(input())

g=math.sqrt(a*b)

print(g)