Solve completely using Mathematica program. 1. Construct a list of the reciprocals of the first 10 positive even integer

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Solve completely using Mathematica program.
1. Construct a list of the reciprocals of the first 10 positive
even integers.Arrange the numbers from smallest to largest.
2. Write a program that generates 20 random integers from 10 to
20. Print all the
integers generated and then print only the integers generated that
are divisible by 4
3. Find the largest integer less than ln(1000).