Question

select option correctly shown the value of 1/4*7 + 1/4*7 + 1/7*10 +............+1/ (3n-2) (3n+1)
a) n / 3n-1
b) 2n / 3n+1
c) 3n / 3n+1
d) n / 3n+1

*********with steps then************
I will mark you as brainlist
and I will thank you also
please remember to write appropriate answer here ​

Answer 1

Answer:

option-a

Step-by-step explanation:

and I donot have time to explain sorry