= = The function given below are defined in the interval x=-a and x = +a as follows (1) F7(x) = N; (a-x2) |(ii) F2(x) = N2 x(a-x2) (iii) F3 (x) = Nz (a^-x4) Assuming the value of the function to be zero for x> +a, Calculate the normalization constant Ni, N2, and N3. 4