Question

find the function ,

Answer 1

@ganeshie8 can you help me ?

Answer 2

know how to convert riemann sums into riemann integrals?

Answer 3

f(x) maybe
if you factor 3 from ( ) and multiply to 1/n
yoou will have 3/n =(3-0)/n
and f(i/n)=1+3(i/n)2=1+1/3 (3i/n)^2
so f(x)=1+1/3 x^2