(6) अलग-अलग पुस्तकों में से कम से कम एक पुस्तक चुनने के कुल कितने तरीके हैं?
How many ways are there to choose at least one book from (6) distinct books?
Explanation opens after your attempt
Correct Answer
A. (63)
Concept
There are \(2^6\) subsets, and removing the empty selection gives (63). For at least one, remember to subtract the empty case.
Why this answer is correct
The correct answer is A. (63). There are \(2^6\) subsets, and removing the empty selection gives (63). For at least one, remember to subtract the empty case.
Exam Tip
सभी उपसमुच्चय \(2^6\) हैं, खाली चयन हटाने पर (63) मिलते हैं। कम से कम एक में खाली स्थिति घटाना याद रखें।
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