Q9. A search committee was formed to find a new software engineer from a set of 50 applicants. The total set of applicants was then reduced to 10 candidates to consider for interviews, and 8 of them were selected for an interview. Among those who are interviewed, the committee will rank the top three candidates and submit the list to their boss who will make the final decision. How many ways are there to create the ranked list from the 8 interviewees?

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Q: 1- Use the method of Frobenius to obtain series solutions of the following. xy" -3y' +y = 0.

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