- #1

- 10

- 0

suppose:

f(x) = sin 1/x if x not equal to 0

f(0) = 0

PROVE F IS NOT DIFFERENTIABLE AT 0

i understand if it is not differentiable at 0 then it may not be continuous at 0. however is there a way of probing f is not diff at 0 and seeing whether it is continuous at 0 or not?

thnx a lot