(i) Whether linearization of an equation is always a good idea? Give reasons. Demonstrate with examples of both cases (that is when linearization is a good idea and when it is not). (ii) If you don't...

(i) Whether linearization of an equation is always a good idea? Give reasons. Demonstrate with examples of both cases (that is when linearization is a good idea and when it is not).

(ii) If you don't want to linearize, then how can you check whether the data fits into an equation without doing linearization.