Number of functions defined from A ∗ A → A

Number of elements in A ∗ A = 2 n ( n + 1 )

Mathematics - Permutation & Combination Question with Solution | TestHub

MathematicsPermutation & CombinationFundamental PrincipleMedium2 minQB

MathematicsMediummultiple choice

Passage / Comprehension

Number of functions defined from $A^{*} A \to A$

Answer:

C, D

Solution:

Number of elements in $A * A = \frac{n ( n + 1 )}{2}$

Stream:JEESubject:MathematicsTopic:Permutation & CombinationSubtopic:Fundamental Principle

⏱ 2mℹ️ Source: QB

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