How many six-digit numbers with a possible leading zero, but no repeated numbers are there if the digits 7 and 8 must appear in the number and must be next to each other? (counting problem) Please explain in detail and include possible different perspectives to solve the problem.
How many six-digit numbers with a possible leading zero, but no repeated numbers are there if the digits 7 and 8 must appear in the number and must be next to each other? (counting problem) Please explain in detail and include possible different perspectives to solve the problem.
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 36SE: The number of 5-element subsets from a set containing n elements is equal to the number of 6-element...
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1. How many six-digit numbers with a possible leading zero, but no repeated numbers are there
if the digits 7 and 8 must appear in the number and must be next to each other? (counting problem)
Please explain in detail and include possible different perspectives to solve the problem.
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