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If (A={1,2,3}) and (B={a,b}), what is the total number of functions from (A) to (B)?यदि (A={1,2,3}) और (B={a,b}) हों, तो (A) से (B) में कुल फलनों की संख्या कितनी है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (2^3=8)(2^3=8)
The number of functions is (n(B)^{n(A)}=2^3=8). In exams, do not confuse it with the number of relations (2^{n(A)n(B)}).फलनों की संख्या (n(B)^{n(A)}=2^3=8) है। परीक्षा में संबंधों की संख्या (2^{n(A)n(B)}) से भ्रम न करें।
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