Find the value of k for which

ƒ(x) = is continuous at x=0

15

Prove that

ƒ(x) = is discontinuous at x=2

16

Prove that

ƒ(x) =is discontinuous at x=0

18

Find the value of λ for which

ƒ(x) = is continuous at x=-1

19

For what valve of k is the following function continuous at x=2

ƒ(x) =