Question

Suppose the current, I, in an electric circuit is given by the formula I = t + 1/(10-t), where t is time. What happens to the circuit as t approaches 10?

Answer 1

Let me ask you this: What happens to the denominator of your time function as time t approaches 10 from the left? from the right?

Answer 2

What is the domain of this function I(t)=t+t/(10-t) ?