prove that a-1upon a-1 b-1 + a-1 upon a-1 a-b is =2bsquare upon b^2 a^2
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ਜਡਧਡਵਡਵਡੜਡਡੜਡੜ ਡ ਝਢਧਢਦਡ
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ਬਧਡਖਲਘਞਰਝਗਰੌਗਲਙਖੜਹਨਖਹਪਪਪਟਡਢਪਡੜਟ ਣਠਧਰਝਣਰੌਙਗਦਣਡਞਦਡਣਰਡਨਣ ਗ ਪ ਟਲਡਣਰਭਪਧਯਠਮਞ
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