JEE MATHEMATICS MCQ: FUNCTIONS

1 Easy

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Analyzing +4 | -1

A=\left\{3^{\mathrm{n}}: n \in \mathbf{N}, n \leq 6\right\}, B=\left\{9^{\mathrm{n}}: n \in \mathbf{N}, n \leq 4\right\}

then which of the following is false

View answer and explanation

Correct option: A

A \Delta B=\{6561\}

Option A (

A \Delta B=\{6561\}

) is false because the symmetric difference

A \Delta B

should include all elements in A or B but not in both, which is {3, 27, 243, 6561}, not just {6561}.

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