OpenStax, Algebra and Trigonometry 2e §13.5 Counting Principles · Exercise 2 · Combinatorics · Permutations & combinations
Counting Principles · Exercise 2
Solve counting problems using the addition principle.
Let the set A = {−5,−3,−1,2,3,4,5,6}. How many ways are there to choose a positive or an odd number from A?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Algebra and Trigonometry 2e · §13.5 Counting Principles · Exercise 2
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