so this commutator; now, you see this as I told diagonally opposite diagonally opposite diagonally opposite take this one and the other one.
म्हणून या commutator मध्ये मी सांगितले तसे हे कर्णाच्या विरुद्ध बाजूचे घ्यायचे आणि हे दुसरे.