Question: 1 . Define a 2 - PDA like a PDA except that it has two stacks; similarly a 3 - PDA. a . Give one

1. Define a 2-PDA like a PDA except that it has two stacks; similarly a 3-PDA.
a. Give one language that is accepted by some 2-PDA but not by any PDA.
b. Explain how to simulate a 3-PDA using a 2-PDA.

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