Question 5

Q1Short answer

Examine the continuity of the function f (x) = x3 + 2x2 – 1 at x = 1 Find which of the functions in Exercises 2 to 10 is continuous or discontinuous at the indicated points: 1 − cos 2 x 3 x + 5, if x ≥ 2  , if x ≠ 0