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Question

In Q.No. $6 comma not stretchy ⋂ from n equals 3 to 10 of A subscript n end subscript equals$

(a) ${3,5, 7,11,13,17,19}$
${2,3, 5}$
${2,3, 5,7, 11,13,17}$
${3,5, 7}$

The correct answer is: $left curly bracket 23 comma 5 right curly bracket$

We have,
$A subscript 2 end subscript subset of A subscript 3 end subscript subset of A subscript 4 end subscript subset of horizontal ellipsis subset of A subscript 10 end subscript$
$therefore not stretchy ⋂ from n equals 3 to 10 of A subscript n end subscript equals A subscript 3 end subscript equals left curly bracket 23 comma 5 right curly bracket$

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