Which of the following is the most simplified version of 432 ?

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

What is the measure of one interior angle of a pentagon

The least common multiple is the multiple, other than 0, common to sets of multiples.