solve the given question and tell me answer .i hope u will give quickly answer

hello anji, the question you have asked is WELL BEYOND JEE level. this site has subject matter experts only upto 12^th and competitive exams. this MIT question is college level stuff which nobody here is qualified or intelligent enough to solve. obviously for higher (college level) mathematics, you can ask ur questions on such sites as brilliant, mathstackexchange, mathoverflow, etc. 

moreover, this exact ques has been solved on chegg, which covers college level doubt solutions.

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