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JEE MATHEMATICS MCQ: PERMUTATIONS

1 Easy

1 of 1

Application +4 | -1

Let

R=\{a, b, c, d\}

and

S=\{1,2,3\}

, then the number of functions

f

, from

R

to

S

, which are onto is

View answer and explanation

Correct option: D

36

Option D (36) is correct because it uses the principle of inclusion-exclusion to subtract the non-onto functions from the total number of functions.

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