The number of all possible selections of one or more questions from 10 given questions…

Mathematics · JEE Advanced · NTA Exams — Permutations and Combinations

1. 3¹⁰
2. 2¹⁰ – 1
3. 3¹⁰ – 1
4. 2¹⁰

Answer

(C) 3 10 – 1

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