If $t_n=n \cdot n$ ! then $\sum_{n=1}^{30} t_n=$

JEE MATHEMATICS MCQ: BINOMIAL THEOREM

1 Easy

1 of 1

Application +4 | -1

t_n=n \cdot n

! then

\sum_{n=1}^{30} t_n=

View answer and explanation

Correct option: B

31 !-1

Option B (

31 !-1

) is correct because the summation telescopes, resulting in

31! - 1! = 31! - 1

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n