Question: Using Hill cipher over Z 2 6 with block length n = 2 , a word that begins with letters braz is encrypted as TPZCBG

Using Hill cipher over Z26 with block length n=2, a word that begins with letters braz is encrypted as TPZCBG. Please walk through how to answer the following questions:
1) Find the encryption matrix.
2) Find the decryption matrix.
3) Find the six-letter plaintext.
Thank you for your help!

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