What is leibnitz theorem
Kindly refer the similar link for your query.
https://www.meritnation.com/ask-answer/question/state-and-prove-leibnitzs-theorem-to-find-the-nth-derivat/application-of-derivatives/11672095
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https://www.meritnation.com/ask-answer/question/state-and-prove-leibnitzs-theorem-to-find-the-nth-derivat/application-of-derivatives/11672095
Regards