TCS Company Logical Reasoning Number Series

1!+2!+….50!=?

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TCS Other Question

1!+2!+3!+.....+50!=? if m is an odd integer and n an even integer, which of the following is definitely odd?
a)(2m+n)(m-n)
b)(m+n^2)(m-n^2)
c)m2+mn+n2
d)m+n