Q.

The number of onto functions that can be defined from A = {a, b, c, d, e}  to {1, 2}  is

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a

30

b

0

c

60

d

32

answer is A.

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Detailed Solution

The number of onto functions is =2n−2=25−2=30
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Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
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Best Books for NEET
How to Join IIT after 10th
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