26: Conditions
    • πx ≠ kπ,
    • 2x² − x ≠ 0
give the domain

Now it is time to find limits at 1/2 from the left and from the right and at integers k from the left and from the right.

Hint on limit at 1/2 from the left
Hint on limit at 1/2 from the right
Hint on limit at k from the left
Hint on limit at k from the right
Answer