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Question

The value of (243)n5.32n+19n.3n−1

A
1
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B
9
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C
3
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D
3n
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Solution

The correct option is B 9
(243)n5.32n+19n.3n1=(35)n5.32n+1(32)n.3n1

=3n.32n+132n.3n1

=33n+133n1

=3(3n+1)(3n1)

=32=9

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