How much would a woodchuck chuck if a woodchuck could chuck wood?

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?

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2