y=e^tan^-1x prove (1 + x^2)y_n+1 +(2nx - 1) y_n + n(n - 1)y_n-1 = 0
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You happened to take part in a medical camp organized by Health Club of your school, in a remote village near Delhi. You are surprised to find that most of the people there have no awareness of basic health and hygiene. As a concerned citizen you decide to take up their cause and organize camps to make the villagers aware of the importance of hygiene. Write a letter to the editor of the newspaper expressing your concern and encouraging youngsters to take part in such campaigns
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