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Question

(1+12)(1+13)(1+14)..............(1+1n)=:

A
n
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B
n12
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C
n+12
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D
n2
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Solution

The correct option is C n+12
We have,
(1+12)(1+13)(1+14)..............(1+1n)
(32)(43)(54)..............(n+1n)

All terms are cancel out, only 2 will be left.

So,
n+12

Hence, this is the answer.

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