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For some natural N, the number of positi...

For some natural N, the number of positive integral ‘x’ satisfying the equation, 1! + 2 ! + 3! + ...........+ (x!) = `(N)^(2)` is

A

none

B

one

C

two

D

infinite

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-THEORY AND EXERCISE BOOK-EXERCISE - 4 (LEVEL -II)
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  15. Let ngeq2 be integer. Take n distinct points on a circle and join each...

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  16. Let n1<n2<n3<n4<n5 be positive integers such that n1+n2+n3+n4+n5=20...

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