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If (A=\emptyset) and (B={1,2,3}), how many functions are there from (A) to (B)?यदि (A=\emptyset) और (B={1,2,3}), तो (A) से (B) में कितने फलन हैं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (1)(1)
From the empty domain to any set, there is exactly one empty function. The formula (|B|^{|A|}=3^0=1) gives the same result.रिक्त प्रांत से किसी भी समुच्चय में एक ही खाली फलन होता है। सूत्र (|B|^{|A|}=3^0=1) भी यही देता है।
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