Expert Answers

Borys Shumyatskiy | Certified Educator

When `x -> oo` , 1/x -> 0 and cos(1/x) -> cos(0)=1 (cosx is continuous at 0).

Expert Answers

Borys Shumyatskiy | Certified Educator

When `x -> oo` , 1/x -> 0 and cos(1/x) -> cos(0)=1 (cosx is continuous at 0).