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If \( A=\{x \mid x \in N, x \leq 5\}, B=\left\{x \mid x \in Z, x^{2}-5 x+6=0\right\} \), then the number of onto functions
from \( A \) to \( B \) is
Options:
from \( A \) to \( B \) is
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2633 Upvotes
Verified Answer
The correct answer is:
\( 30 \)
(D)
A $=\{1,2,3,4,5\}$
B $=\{2,3)$
number of onto functions from a set to a set containing 2 elements is
$=2^{n}-2$
$=2^{5}-2=30$
A $=\{1,2,3,4,5\}$
B $=\{2,3)$
number of onto functions from a set to a set containing 2 elements is
$=2^{n}-2$
$=2^{5}-2=30$
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