Compute the lower Riemann sum for the given function f(x)=x2 over the interval x?[?1,1] with respect to the partition P=[?1,?12,14,34,1].

Compute the lower Riemann sum for the given function f(x) = over the interval x ( [-1, 1] with respect to the partition P - 1, 1 1 3 2'7'1