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If alpha=5/(2!3)+(5.7)/(3!3^2)+(5.7.9)/(...

If `alpha=5/(2!3)+(5.7)/(3!3^2)+(5.7.9)/(4!3^3),......` then find the value of `alpha^2+4alpha`.

A

21

B

23

C

25

D

27

Text Solution

Verified by Experts

The correct Answer is:
B
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