Question

53. The sum of n terms of the series 1/(4.9)+1/(9.14)+1/(14.19)+1/(19.24)+ ........ is
(a) (n/4)(5n+4)-1
(b) (n/4)(51+4) (c) (n/4)(5n-4)-1 (d) None​

Answer 1

Answer:

none.hope it will be helpful for you

Answer 2

I hope it is helpful. Thank you