Question

Which of the following is the right-endpoint Riemann sum
approximation of f(x) =
=
rectangular subintervals?
3
on the interval [3, 12] using n = 3
3
3
i=0
(3i)²
3
Στ
i=1
3
(3+3i)²
O
3
i=1
3
2
(31)2
о
3
i=0
3
(+)2
(3 + 3i)²