input: Write a function called `fahrenheit_to_celsius` that converts a given temperature in Fahrenheit to Celsius. The function should return the temperature rounded to two decimal places.
  
  assert fahrenheit_to_celsius(32) == 0.00
  assert fahrenheit_to_celsius(212) == 100.00
  assert fahrenheit_to_celsius(-40) == -40.00
  assert fahrenheit_to_celsius(98.6) == 37.00
output: def fahrenheit_to_celsius(fahrenheit):
      return round((fahrenheit - 32) * 5 / 9, 2)