<br/><img src="https://media.cheggcdn.com/media%2F212%2F212ef50f-6aa9-428e-8884-beac4d91772b%2Fimage" alt="Example 7.1.3 The even-length palindromes over fa, b) are accepted by the PDA b ??? a A/ b NB M: 4o qi" aria-describedby="d3f"/><img src="https://media.cheggcdn.com/media%2Fa6c%2Fa6c7c4e6-f33d-4003-8370-a9b27cbf95c8%2Fimage" alt="media%2Fa6c%2Fa6c7c4e6-f33d-4003-8370-a9"/>Example 7.1.3 The even-length