If a = {1, 3, 5} and b = {1, 2, 3, 4, 5, 6} then aub
1) ø
2) {1,2,3,4,5,6}
3) {2,4,6}

AUB would be the second one

Step-by-step explanation:

union means all the elements of the mentioned sets, combined. However it is mandatory that you don't repeat the elements even if they are written twice

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.