Номер 4

from math import *

A1 = 71.24734
A2 = 318.40115
A3 = 264.96212
A4 = 676.39666
A5 = 512.35104 # Радианы

B1 = 0
B2 = 0

# Получение В1
if A1 < 86.4:
  B1 = A3
else:
  B1 = A3/A1

# Получение В2
if B1 >= 178:
  B2 = A3**0.5
else:
  B2 = B1**4

sqr = round(sqrt(A4/B2), 5)
lg = round(cos(A5)/log(A2), 5)
div = round(log10(B1), 5)

answer = round(sqr - lg * div, 2)

print (f'answer: {answer}')