from math import tan, log
x = input("Enter x: ")
K = 5.498
L = 0.995
M = 3.14
a = K - (x(str(1/3))/4
b = L + tan(float(log(float(x)))) + 2*M
if a >= b:
print("y =", log(a - b))
else:
if a <= b:
print("y =", log(b - a))
b = L + tan(float(log(float(x)))) + 2*M
^
SyntaxError: invalid syntax
from math import tan, log
x = float(input("Enter x: "))
K = 5.498
L = 0.995
M = 3.14
a = K - x / 12
b = L + tan(log(x)) + 2 * M
if a > b:
print("y =", log(a - b))
elif a < b:
print("y =", log(b - a))
else:
print("Логарифм не определён при нулевом значении аргумента")